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Red hair (also known as orange hair and ginger hair) is a
hair color Human hair color is the pigmentation of human hair follicles due to two types of melanin: eumelanin and pheomelanin. Generally, if more melanin is present, the color of the hair is darker; if less melanin is present, the hair is lighter. The ...
found in one to two percent of the
human population Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, culture, ...
, appearing with greater frequency (two to six percent) among people of
Northern Northern may refer to the following: Geography * North, a point in direction * Northern Europe, the northern part or region of Europe * Northern Highland, a region of Wisconsin, United States * Northern Province, Sri Lanka * Northern Range, a ra ...
or
Northwestern Europe Northwestern Europe, or Northwest Europe, is a loosely defined subregion of Europe, overlapping Northern and Western Europe. The region can be defined both geographically and ethnographically. Geographic definitions Geographically, Northw ...
an ancestry and lesser frequency in other populations. It is most common in individuals
homozygous Zygosity (the noun, zygote, is from the Greek "yoked," from "yoke") () is the degree to which both copies of a chromosome or gene have the same genetic sequence. In other words, it is the degree of similarity of the alleles in an organism. Mo ...
for a
recessive allele In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome. The first variant is termed dominant and t ...
on
chromosome 16 Chromosome 16 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 16 spans about 90 million base pair A base pair (bp) is a fundamental unit of double-stranded nucleic acids consisting ...
that produces an altered version of the
MC1R The melanocortin 1 receptor (MC1R), also known as melanocyte-stimulating hormone receptor (MSHR), melanin-activating peptide receptor, or melanotropin receptor, is a G protein–coupled receptor that binds to a class of pituitary peptide hormones ...
protein. Red hair varies in hue from a deep
burgundy Burgundy (; french: link=no, Bourgogne ) is a historical territory and former administrative region and province of east-central France. The province was once home to the Dukes of Burgundy from the early 11th until the late 15th century. The c ...
or bright
copper Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkis ...
, or
auburn Auburn may refer to: Places Australia * Auburn, New South Wales * City of Auburn, the local government area *Electoral district of Auburn *Auburn, Queensland, a locality in the Western Downs Region *Auburn, South Australia *Auburn, Tasmania *Aub ...
, to
burnt orange In optics, orange has a wavelength between approximately 585 and 620  nm and a hue of 30° in HSV color space. In the RGB color space it is a secondary color numerically halfway between gamma-compressed red and yellow, as can be seen in ...
or
red-orange Vermilion (sometimes vermillion) is a color, color family, and pigment most often made, since antiquity until the 19th century, from the powdered mineral cinnabar (a form of mercury sulfide, which is toxic) and its corresponding color. It is ...
to strawberry blond. Characterized by high levels of the reddish pigment
pheomelanin Melanin (; from el, μέλας, melas, black, dark) is a broad term for a group of natural pigments found in most organisms. Eumelanin is produced through a multistage chemical process known as melanogenesis, where the oxidation of the amino ...
and relatively low levels of the dark pigment
eumelanin Melanin (; from el, μέλας, melas, black, dark) is a broad term for a group of natural pigments found in most organisms. Eumelanin is produced through a multistage chemical process known as melanogenesis, where the oxidation of the amin ...
, it is associated with fair skin color, lighter
eye color Eye color is a polygenic phenotypic character determined by two distinct factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. In humans, the pi ...
,
freckle Freckles are clusters of concentrated melaninized cells which are most easily visible on people with a fair complexion. Freckles do not have an increased number of the melanin-producing cells, or melanocytes, but instead have melanocytes that ...
s, and sensitivity to
ultraviolet light Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 nm (with a corresponding frequency around 30  PHz) to 400 nm (750  THz), shorter than that of visible light, but longer than X-rays. UV radiation i ...
. Cultural reactions to red hair have been varied. The term "redhead" has been in use since at least 1510.


Geographic distribution


Modern


Northern and Western Europe

Red hair is most commonly found at the
northern Northern may refer to the following: Geography * North, a point in direction * Northern Europe, the northern part or region of Europe * Northern Highland, a region of Wisconsin, United States * Northern Province, Sri Lanka * Northern Range, a ra ...
and western fringes of Europe; it is centred around populations in the
British Isles The British Isles are a group of islands in the North Atlantic Ocean off the north-western coast of continental Europe, consisting of the islands of Great Britain, Ireland, the Isle of Man, the Inner and Outer Hebrides, the Northern Isles, ...
and is particularly associated with the
Celtic nations The Celtic nations are a cultural area and collection of geographical regions in Northwestern Europe where the Celtic languages and cultural traits have survived. The term ''nation'' is used in its original sense to mean a people who shar ...
.
Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...
has the highest number of red-haired people per capita in the world with the percentage of those with red hair at around 10%.
Great Britain Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is ...
also has a high percentage of people with red hair. In Scotland around 6% of the population has red hair, with the highest concentration of red head carriers in the world found in
Edinburgh Edinburgh ( ; gd, Dùn Èideann ) is the capital city of Scotland and one of its 32 Council areas of Scotland, council areas. Historically part of the county of Midlothian (interchangeably Edinburghshire before 1921), it is located in Lothian ...
, making it the red head capital of the world. In 1907, the largest ever study of hair colour in Scotland, which analysed over 500,000 people, found the percentage of Scots with red hair to be 5.3%. A 1956 study of hair colour among
British Army The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurk ...
recruits also found high levels of red hair in
Wales Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...
and in the Scottish border counties of England.


Eastern Europe

Byzantine The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinopl ...
writers,
Jordanes Jordanes (), also written as Jordanis or Jornandes, was a 6th-century Eastern Roman bureaucrat widely believed to be of Goths, Gothic descent who became a historian later in life. Late in life he wrote two works, one on Roman history (''Romana ...
and
Procopius Procopius of Caesarea ( grc-gre, Προκόπιος ὁ Καισαρεύς ''Prokópios ho Kaisareús''; la, Procopius Caesariensis; – after 565) was a prominent late antique Greek scholar from Caesarea Maritima. Accompanying the Roman gener ...
described the early Slavic peoples as having ruddy hair and skin tone. According to historian Łukasz Stanaszek, early Slavs had fair hair with a reddish tinge ( strawberry blonde), and later by the 10th century, Southern Slavic populations would have darker hair and skin tone, as the Slavs assimilated the indigenous inhabitants of the Balkans, including people of
Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...
and Illyrian heritage. In the late 18th century,
ethnographers Ethnography (from Greek ''ethnos'' "folk, people, nation" and ''grapho'' "I write") is a branch of anthropology and the systematic study of individual cultures. Ethnography explores cultural phenomena from the point of view of the subject o ...
considered the
Udmurt people The Udmurts ( udm, Удмуртъёс, ) are a Permian ( Finnic) ethnic group in Eastern Europe, who speak the Udmurt language. In the course of history, Russian-speakers have referred to them as ' (), Otyaks, Wotyaks or Votyaks. Etymology The n ...
of the
Volga Region The Volga Region (russian: Поволжье, ''Povolzhye'', literally: "along the Volga") is a historical region in Russia that encompasses the drainage basin of the Volga River, the longest river in Europe, in central and southern European Russ ...
in Russia to be "the most red-headed men in the world". The Volga region still has one of the highest percentages of redheaded people. Red hair is also found amongst the
Ashkenazi Ashkenazi Jews ( ; he, יְהוּדֵי אַשְׁכְּנַז, translit=Yehudei Ashkenaz, ; yi, אַשכּנזישע ייִדן, Ashkenazishe Yidn), also known as Ashkenazic Jews or ''Ashkenazim'',, Ashkenazi Hebrew pronunciation: , singu ...
Jewish populations. In 1903, 5.6% of Polish Jews had red hair. Other studies have found that 3.69% of Jewish women overall were found to have red hair, but around 10.9% of all Jewish men have red
beards A beard is the hair that grows on the jaw, chin, upper lip, lower lip, cheeks, and neck of humans and some non-human animals. In humans, usually pubescent or adult males are able to grow beards. Throughout the course of history, societal at ...
. The
stereotype In social psychology, a stereotype is a generalized belief about a particular category of people. It is an expectation that people might have about every person of a particular group. The type of expectation can vary; it can be, for example ...
that red hair is Jewish remains in parts of Eastern Europe and Russia.''Jewish hearts: a study of dynamic ethnicity in the United States and the Soviet Union'', SUNY Press, 2001, Betty N. Hoffman, page 106


Southern Europe

In Italy, red hair is found at a frequency of 0.57% of the total population, without variation in frequency across the different regions of the country.''Consanguinity, Inbreeding, and Genetic Drift in Italy'', Princeton University Press, 15 Feb 2013, Luigi Luca Cavalli-Sforza, Antonio Moroni, Gianna Zei, page 270 In Sardinia, red hair is found at a frequency of 0.24% of the population. In Italy, red hair was associated with Italian Jews, and
Judas Judas Iscariot (; grc-x-biblical, Ἰούδας Ἰσκαριώτης; syc, ܝܗܘܕܐ ܣܟܪܝܘܛܐ; died AD) was a disciple and one of the original Twelve Apostles of Jesus Christ. According to all four canonical gospels, Judas betraye ...
was traditionally depicted as red-haired in Italian and Spanish art.''Judas's Red Hair and The Jews'', ''Journal of Jewish Art (9)'', 31–46, 1982, Melinnkoff R.M In European culture, before the 20th century, red hair was often seen as a stereotypically Jewish trait: during the
Spanish Inquisition The Tribunal of the Holy Office of the Inquisition ( es, Tribunal del Santo Oficio de la Inquisición), commonly known as the Spanish Inquisition ( es, Inquisición española), was established in 1478 by the Catholic Monarchs, King Ferdinand ...
, all those with red hair were identified as Jewish.''The Jewish Persona in the European Imagination: A Case of Russian Literature'', By Leonid Livak, (Stanford University Press 2010).


North Africa and Mediterranean

The
Berber Berber or Berbers may refer to: Ethnic group * Berbers, an ethnic group native to Northern Africa * Berber languages, a family of Afro-Asiatic languages Places * Berber, Sudan, a town on the Nile People with the surname * Ady Berber (1913–196 ...
populations of
Morocco Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to ...
and northern Algeria have occasional redheads. Red hair frequency is especially significant among the Riffians from Morocco and Kabyles from Algeria, respectively.


Asia (all regions)

In Asia, red hair can be found among some peoples of Afghan, Arab, Iranian, Mongolian,
Turkic Turkic may refer to: * anything related to the country of Turkey * Turkic languages, a language family of at least thirty-five documented languages ** Turkic alphabets (disambiguation) ** Turkish language, the most widely spoken Turkic language * ...
, Miao, and Hmong descent. Several preserved samples of human hair have been obtained from an Iron Age cemetery in Khakassia, South Siberia. Many of the hair samples appear red in color, and one skull from the cemetery had a preserved red moustache. Ancient human remains described as having red or
auburn hair Auburn hair is a human hair color, a variety of red hair, most commonly described as reddish-brown in color or dark ginger. Auburn hair ranges in shades from medium to dark. It can be found with a wide array of skin tones and eye colors. The che ...
have been discovered in various parts of Asia including the Tarim mummies of Xinjiang, China. In Chinese sources, ancient
Kyrgyz people The Kyrgyz people (also spelled Kyrghyz, Kirgiz, and Kirghiz; ) are a Turkic ethnic group native to Central Asia. Kyrgyzstan is the nation state of the Kyrgyz people and significant diaspora can be found in China, Russia, and Uzbekistan. ...
were described as fair-skinned, green- or blue-eyed and red-haired people with a mixture of European and East Asian features. In the
Book of Wei The ''Book of Wei'', also known by its Chinese name as the ''Wei Shu'', is a classic Chinese historical text compiled by Wei Shou from 551 to 554, and is an important text describing the history of the Northern Wei and Eastern Wei from 386 to 5 ...
, Chinese author Wei Shou notes that Liu Yuan was over 6 feet tall and had red strands of hair in his long beard. The ethnic
Miao people The Miao are a group of linguistically-related peoples living in Southern China and Southeast Asia, who are recognized by the government of China as one of the 56 List of ethnic groups in China, official ethnic groups. The Miao live primarily in ...
of China are recorded with red hair. According to F.M Savina of the Paris Foreign Missionary Society, the appearance of the Miao was pale yellow in their skin complexion, almost white, their hair color often being light or dark brown, sometimes even red or corn-silk blond, and a few of them even have pale blue eyes. A phenotype study of
Hmong People The Hmong people ( RPA: ''Hmoob'', Nyiakeng Puachue: , Pahawh Hmong: , ) are a sub-ethnic group of the Miao people who originated from Central China. The modern Hmongs presently reside mainly in Southwest China (Guizhou, Yunnan, Sichuan, Chon ...
show they are sometimes born with red hair. There are other examples of red hair among early Turkic people. Muqan Qaghan, the third Qaghan of the Turkic Khaganate, was said to have red hair and blue eyes. The Kipchak people were a
Turkic Turkic may refer to: * anything related to the country of Turkey * Turkic languages, a language family of at least thirty-five documented languages ** Turkic alphabets (disambiguation) ** Turkish language, the most widely spoken Turkic language * ...
ethnic group from central Asia who served in the Golden Horde military forces after being conquered by the Mongols. In the Chinese historical document ''Kang mu'', the Kipchak people are described as red haired and blue eyed.


Americas, Oceania and Sub-Saharan Africa

Reddish-brown (
auburn Auburn may refer to: Places Australia * Auburn, New South Wales * City of Auburn, the local government area *Electoral district of Auburn *Auburn, Queensland, a locality in the Western Downs Region *Auburn, South Australia *Auburn, Tasmania *Aub ...
) hair is also found amongst some
Polynesians Polynesians form an ethnolinguistic group of closely related people who are native to Polynesia (islands in the Polynesian Triangle), an expansive region of Oceania in the Pacific Ocean. They trace their early prehistoric origins to Island Sou ...
, and is especially common in some tribes and family groups. In Polynesian culture reddish hair has traditionally been seen as a sign of descent from high-ranking ancestors and a mark of rulership. Emigration from Europe has increased the population of red haired humans in the Americas, Australia, New Zealand and South Africa.


Historical

Several accounts by Greek writers mention redheaded people. A fragment by the poet Xenophanes describes the Thracians as blue-eyed and red-haired. The ancient peoples Budini and Sarmatians are also reported by Greek author to be blue-eyed and red-haired, and the latter even owe their names to it. In Asia, red or auburn hair has been found among the ancient Tocharians, who occupied the Tarim Basin in what is now the northwesternmost province of China. Tarim mummies have been found with red hair dating to the
2nd millennium BC The 2nd millennium BC spanned the years 2000 BC to 1001 BC. In the Ancient Near East, it marks the transition from the Middle to the Late Bronze Age. The Ancient Near Eastern cultures are well within the historical era: The first half of the mil ...
. In certain Biblical accounts, Hebrew and Israelite individuals were described as having ruddy hair. For example, Esau and David (Gen. 25:25; 1 Sam. 16:12, 17:42.), are described as ''"admoni"'', meaning red or ruddy.


Biochemistry and genetics

The pigment
pheomelanin Melanin (; from el, μέλας, melas, black, dark) is a broad term for a group of natural pigments found in most organisms. Eumelanin is produced through a multistage chemical process known as melanogenesis, where the oxidation of the amino ...
gives red hair its distinctive color. Red hair has far more of the pigment pheomelanin than it has of the dark pigment eumelanin. The genetics of red hair appear to be associated with the
melanocortin-1 receptor The melanocortin 1 receptor (MC1R), also known as melanocyte-stimulating hormone receptor (MSHR), melanin-activating peptide receptor, or melanotropin receptor, is a G protein–coupled receptor that binds to a class of pituitary peptide hormones ...
(MC1R), which is found on
chromosome 16 Chromosome 16 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 16 spans about 90 million base pair A base pair (bp) is a fundamental unit of double-stranded nucleic acids consisting ...
. In 1995, Valverde, et al. identified aleles on MC1R associated with red hair. The number of alleles linked to red hair has since been expanded by other authors, and these variants are now identified as the RHC alleles. Eighty percent of redheads have an MC1R gene variant within the RHC. Red hair is also associated with fair skin color because the MC1R mutation also results in low concentrations of eumelanin throughout the body. The lower melanin concentration in skin confers the advantage that a sufficient concentration of important Vitamin D can be produced under low light conditions. However, when UV-radiation is strong (as in regions close to the equator) the lower concentration of melanin leads to several medical disadvantages, such as a higher risk of skin cancer. The MC1R variant gene that gives people red hair generally results in skin that is difficult or impossible to tan. Because of the natural tanning reaction to the sun's ultraviolet light and high amounts of pheomelanin in the skin,
freckle Freckles are clusters of concentrated melaninized cells which are most easily visible on people with a fair complexion. Freckles do not have an increased number of the melanin-producing cells, or melanocytes, but instead have melanocytes that ...
s are a common but not universal feature of red-haired people. Red hair can originate from several changes on the MC1R-gene. If one of these changes is present on both chromosomes then the respective individual is likely to have red hair. This type of inheritance is described as an autosomal recessive. Even if both parents do not have red hair themselves, both can be
carrier Carrier may refer to: Entertainment * ''Carrier'' (album), a 2013 album by The Dodos * ''Carrier'' (board game), a South Pacific World War II board game * ''Carrier'' (TV series), a ten-part documentary miniseries that aired on PBS in April 20 ...
s for the gene and have a redheaded child. Genetic studies of dizygotic (fraternal) twins indicate that the MC1R gene is not solely responsible for the red hair phenotype; unidentified modifier genes exist, making variance in the MC1R gene necessary, but not sufficient, for red hair production.


Genetics

The alleles Arg151Cys, Arg160Trp,
Asp294His The melanocortin 1 receptor (MC1R), also known as melanocyte-stimulating hormone receptor (MSHR), melanin-activating peptide receptor, or melanotropin receptor, is a G protein–coupled receptor that binds to a class of pituitary peptide hormon ...
, and Arg142His on MC1R are shown to be recessives for the red hair phenotype. The gene ''HCL2'' on chromosome 4 may also be related to red hair. There are at least 8 genetic differences associated with red hair color. In species other than primates, red hair has different genetic origins and mechanisms.


Beards

The genes responsible for red hair can express themselves to different extents in different people. One consequence of this is that a number of people have both dark hair and red beards. This may reflect the presence of a single copy of the MC1R gene, leading to differential expression in the beard versus the scalp hair. However, some red-bearded people lack MC1R genes.


Evolution


Origins

Red hair is the rarest natural hair color in humans. The non-tanning skin associated with red hair may have been advantageous in far-northern climates where sunlight is scarce. Studies by Bodmer and
Cavalli-Sforza Luigi Luca Cavalli-Sforza (; 25 January 1922 – 31 August 2018) was an Italian geneticist. He was a population geneticist who taught at the University of Parma, the University of Pavia and then at Stanford University. Works Schooling and po ...
(1976) hypothesized that lighter skin pigmentation prevents rickets in colder climates by encouraging higher levels of vitamin D production and also allows the individual to retain heat better than someone with darker skin. In 2000, Harding ''et al.'' concluded that red hair is not the result of positive selection but of a lack of negative selection. In Africa, for example, red hair is selected against because high levels of sun harm pale skin. However, in Northern Europe this does not happen, so redheads can become more common through genetic drift. Estimates on the original occurrence of the currently active gene for red hair vary from 20,000 to 100,000 years ago. A DNA study has concluded that some
Neanderthals Neanderthals (, also ''Homo neanderthalensis'' and erroneously ''Homo sapiens neanderthalensis''), also written as Neandertals, are an Extinction, extinct species or subspecies of archaic humans who lived in Eurasia until about 40,000 years ag ...
also had red hair, although the mutation responsible for this differs from that which causes red hair in modern humans.


Extinction hoax

A 2007 report in '' The Courier-Mail'', which cited the ''
National Geographic ''National Geographic'' (formerly the ''National Geographic Magazine'', sometimes branded as NAT GEO) is a popular American monthly magazine published by National Geographic Partners. Known for its photojournalism, it is one of the most widely ...
'' magazine and unnamed "geneticists", said that red hair is likely to die out in the near future. Other blogs and news sources ran similar stories that attributed the research to the magazine or the "Oxford Hair Foundation". However, a HowStuffWorks article says that the foundation was funded by hair-dye maker Procter & Gamble, and that other experts had dismissed the research as either lacking in evidence or simply bogus. The ''National Geographic'' article in fact states "while redheads may decline, the potential for red isn't going away".Redhead extinction
HowStuffWorks. Retrieved 28 June 2009.
Red hair is caused by a relatively rare recessive allele, the expression of which can skip generations. It is not likely to disappear at any time in the foreseeable future.


Medical implications of the red hair gene


Melanoma

Melanin in the skin aids UV tolerance through sun tanning, but fair-skinned persons lack the levels of melanin needed to prevent UV-induced DNA-damage. Studies have shown that red hair alleles in MC1R increase freckling and decrease tanning ability. It has been found that Europeans who are heterozygous for red hair exhibit increased sensitivity to UV radiation. Red hair and its relationship to UV sensitivity are of interest to many
melanoma Melanoma, also redundantly known as malignant melanoma, is a type of skin cancer that develops from the pigment-producing cells known as melanocytes. Melanomas typically occur in the skin, but may rarely occur in the mouth, intestines, or eye ( ...
researchers. Sunshine can both be good and bad for a person's health and the different alleles on MC1R represent these adaptations. It also has been shown that individuals with pale skin are highly susceptible to a variety of skin cancers such as
melanoma Melanoma, also redundantly known as malignant melanoma, is a type of skin cancer that develops from the pigment-producing cells known as melanocytes. Melanomas typically occur in the skin, but may rarely occur in the mouth, intestines, or eye ( ...
, basal cell carcinoma, and
squamous cell carcinoma Squamous-cell carcinomas (SCCs), also known as epidermoid carcinomas, comprise a number of different types of cancer that begin in squamous cells. These cells form on the surface of the skin, on the lining of hollow organs in the body, and on the ...
.Rees JL (2002a) Molecular phototypes. In: Ortonne J-P, Ballotti R (eds) Mechanisms of suntanning. Martin Dunitz, London, pp 333–339Rees JL (2002b) Skin cancer (including nevoid basal cell carcinoma syndrome). In: Vogelstein B, Kinzler K (eds) The genetic basis of human cancer, 2nd ed. McGraw-Hill, New York, pp. 529–548


Pain tolerance and injury

Two studies have demonstrated that people with red hair have different sensitivity to pain to people with other hair colors. One study found that people with red hair are more sensitive to thermal pain (associated with naturally occurring low vitamin K levels), while another study concluded that redheads are less sensitive to pain from multiple modalities, including noxious stimuli such as electrically induced pain. Researchers have found that people with red hair require greater amounts of anesthetic. Other research publications have concluded that women with naturally red hair require less of the painkiller pentazocine than do either women of other hair colors or men of any hair color. A study showed women with red hair had a greater
analgesic An analgesic drug, also called simply an analgesic (American English), analgaesic (British English), pain reliever, or painkiller, is any member of the group of drugs used to achieve relief from pain (that is, analgesia or pain management). It ...
response to that particular pain medication than men. A follow-up study by the same group showed that men and women with red hair had a greater analgesic response to morphine-6-glucuronide. However, a later study of 468 healthy adult patients found no significant difference in recovery times, pain scores or quality of recovery in those with red compared with dark hair in either men or women. The unexpected relationship of hair color to pain tolerance appears to exist because redheads have a mutation in a hormone receptor that can apparently respond to at least two types of hormones: the pigmentation-driving melanocyte-stimulating hormone (MSH), and the pain-relieving
endorphins Endorphins (contracted from endogenous morphine) are chemical signals in the brain that block the perception of pain and increase feelings of wellbeing. They are produced and stored in an area of the brain known as the pituitary gland. Hist ...
. (Both derive from the same precursor molecule, POMC, and are structurally similar.) Specifically, redheads have a mutated
melanocortin-1 receptor The melanocortin 1 receptor (MC1R), also known as melanocyte-stimulating hormone receptor (MSHR), melanin-activating peptide receptor, or melanotropin receptor, is a G protein–coupled receptor that binds to a class of pituitary peptide hormones ...
(MC1R) gene that produces an altered receptor for MSH. Melanocytes, the cells that produce pigment in skin and hair, use the MC1R to recognize and respond to MSH from the
anterior pituitary A major organ of the endocrine system, the anterior pituitary (also called the adenohypophysis or pars anterior) is the glandular, anterior lobe that together with the posterior lobe (posterior pituitary, or the neurohypophysis) makes up the p ...
gland. Melanocyte-stimulating hormone normally stimulates melanocytes to make black
eumelanin Melanin (; from el, μέλας, melas, black, dark) is a broad term for a group of natural pigments found in most organisms. Eumelanin is produced through a multistage chemical process known as melanogenesis, where the oxidation of the amin ...
, but if the melanocytes have a mutated receptor, they will make reddish
pheomelanin Melanin (; from el, μέλας, melas, black, dark) is a broad term for a group of natural pigments found in most organisms. Eumelanin is produced through a multistage chemical process known as melanogenesis, where the oxidation of the amino ...
instead. MC1R also occurs in the brain, where it is one of a large set of POMC-related receptors that are apparently involved not only in responding to MSH, but also in responses to
endorphins Endorphins (contracted from endogenous morphine) are chemical signals in the brain that block the perception of pain and increase feelings of wellbeing. They are produced and stored in an area of the brain known as the pituitary gland. Hist ...
and possibly other POMC-derived hormones. Though the details are not clearly understood, it appears that there is some
crosstalk In electronics, crosstalk is any phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel. Crosstalk is usually caused by undesired capacitive, induc ...
between the POMC hormones; this may explain the link between red hair and pain tolerance. There is little or no evidence to support the belief that people with red hair have a higher chance than people with other hair colors to hemorrhage or suffer other bleeding complications. One study, however, reports a link between red hair and a higher rate of bruising.


Red hair of pathological origin

Most red hair is caused by the MC1R gene and is non-pathological. However, in rare cases red hair can be associated with disease or genetic disorder: * In cases of severe malnutrition, normally dark human hair may turn red or
blond Blond (male) or blonde (female), also referred to as fair hair, is a hair color characterized by low levels of the dark pigment eumelanin. The resultant visible hue depends on various factors, but always has some yellowish color. The color can ...
e. The condition, part of a syndrome known as
kwashiorkor Kwashiorkor ( , ) is a form of severe protein malnutrition characterized by edema and an enlarged liver with fatty infiltrates. It is thought to be caused by sufficient calorie intake, but with insufficient protein consumption (or lack of goo ...
, is a sign of critical starvation caused chiefly by protein deficiency, and is common during periods of
famine A famine is a widespread scarcity of food, caused by several factors including war, natural disasters, crop failure, Demographic trap, population imbalance, widespread poverty, an Financial crisis, economic catastrophe or government policies. Th ...
. * One variety of albinism (Type 3, a.k.a. rufous albinism), sometimes seen in Africans and inhabitants of New Guinea, results in red hair and red-colored skin.Pathology Guy: Accumulations and Deposits
Ed Friedlander, M.D., Pathologist. Last updated 24 September 2006
* Red hair is found on people lacking pro-opiomelanocortin. There have also been rare reports of scalp or beard hair spontaneously turning partially red, with no identified pathological cause.


Culture

In various times and cultures, red hair has been prized, feared, and ridiculed.


Beliefs concerning temperament

A common belief about redheads is that they have fiery tempers and sharp tongues. In ''
Anne of Green Gables ''Anne of Green Gables'' is a 1908 novel by Canadian author Lucy Maud Montgomery (published as L. M. Montgomery). Written for all ages, it has been considered a classic children's novel since the mid-20th century. Set in the late 19th century, t ...
'', a character says of Anne Shirley, the redheaded heroine, that "her temper matches her hair", while in '' The Catcher in the Rye'', Holden Caulfield remarks that "People with red hair are supposed to get mad very easily, but Allie is dead brothernever did, and he had very red hair." During the early stages of modern medicine, red hair was thought to be a sign of a sanguine temperament. In the Indian medicinal practice of Ayurveda, redheads are seen as most likely to have a Pitta temperament. Another belief is that redheads are highly sexed; for example, Jonathan Swift satirizes redhead stereotypes in part four of ''
Gulliver's Travels ''Gulliver's Travels'', or ''Travels into Several Remote Nations of the World. In Four Parts. By Lemuel Gulliver, First a Surgeon, and then a Captain of Several Ships'' is a 1726 prose satire by the Anglo-Irish writer and clergyman Jonathan ...
'', "A Voyage to the Country of the Houyhnhnms," when he writes that: "It is observed that the red-haired of both sexes are more libidinous and mischievous than the rest, whom yet they much exceed in strength and activity." Swift goes on to write that "neither was the hair of this brute Yahoo">Yahoo_(literature).html" ;"title=" Yahoo (literature)">Yahooof a red colour (which might have been some excuse for an appetite a little irregular) but black as a sloe". Such beliefs were given a veneer of scientific credibility in the 19th century by Cesare Lombroso and Guglielmo Ferrero. They concluded that red hair was associated with crimes of lust, and claimed that 48% of "criminal women" were redheads.


Media, fashion and art

Queen Elizabeth I of England was a redhead, and during the Elizabethan era in England, red hair was fashionable for women. In modern times, red hair is subject to fashion trends; celebrities such as Nicole Kidman, Alyson Hannigan, Marcia Cross, Christina Hendricks,
Emma Stone Emily Jean Stone (born November 6, 1988), known professionally as Emma Stone, is an American actress. She is the recipient of various accolades, including an Academy Award, a British Academy Film Award, and a Golden Globe Award. In 2017, she ...
and Geri Halliwell can boost sales of red hair dye. Sometimes, red hair darkens as people get older, becoming a more brownish color or losing some of its vividness. This leads some to associate red hair with youthfulness, a quality that is generally considered desirable. In several countries such as India, Iran, Bangladesh and Pakistan,
henna Henna is a dye prepared from the plant ''Lawsonia inermis'', also known as the henna tree, the mignonette tree, and the Egyptian privet, the sole species of the genus ''Lawsonia''. ''Henna'' can also refer to the temporary body art resulting fr ...
and saffron are used on hair to give it a bright red appearance. Many painters have exhibited a fascination with red hair. The hair color " Titian" takes its name from the artist Titian, who often painted women with red hair. Early Renaissance artist Sandro Botticelli's famous painting '' The Birth of Venus'' depicts the mythological goddess Venus as a redhead. Other painters notable for their redheads include the
Pre-Raphaelites The Pre-Raphaelite Brotherhood (later known as the Pre-Raphaelites) was a group of English painters, poets, and art critics, founded in 1848 by William Holman Hunt, John Everett Millais, Dante Gabriel Rossetti, William Michael Rossetti, James ...
, Edmund Leighton, Modigliani, and
Gustav Klimt Gustav Klimt (July 14, 1862 – February 6, 1918) was an Austrian symbolist painter and one of the most prominent members of the Vienna Secession movement. Klimt is noted for his paintings, murals, sketches, and other objets d'art. Klimt's prim ...
. Sir Arthur Conan Doyle's
Sherlock Holmes Sherlock Holmes () is a fictional detective created by British author Arthur Conan Doyle. Referring to himself as a " consulting detective" in the stories, Holmes is known for his proficiency with observation, deduction, forensic science and ...
story " The Red-Headed League" (1891) involves a man who is asked to become a member of a mysterious group of red-headed people. The 1943 film '' DuBarry Was a Lady'' featured red-heads Lucille Ball and Red Skelton in Technicolor. Notable comic book characters with red hair include Jean Grey, Red Sonja, Mystique, and Poison Ivy. A book of photographs of red haired people was published in 2020, ''Gingers'' by Kieran Dodds (2020).


Prejudice and discrimination against redheads


Medieval beliefs

Red hair was thought to be a mark of a beastly sexual desire and moral degeneration. A savage red-haired man is portrayed in the fable by Grimm brothers ('' Der Eisenhans'') as the spirit of the forest of iron. Theophilus Presbyter describes how the blood of a red-haired young man is necessary to create gold from copper, in a mixture with the ashes of a basilisk. According to Montague Summers, red hair and green eyes were thought to be the sign of a witch, a werewolf or a vampire during the Middle Ages:


Medieval antisemitism

During the
Spanish Inquisition The Tribunal of the Holy Office of the Inquisition ( es, Tribunal del Santo Oficio de la Inquisición), commonly known as the Spanish Inquisition ( es, Inquisición española), was established in 1478 by the Catholic Monarchs, King Ferdinand ...
, people of red hair were identified as Jewish and isolated for persecution. In Medieval Italy and Spain, red hair was associated with the heretical nature of Jews and their rejection of Jesus, and thus Judas Iscariot was commonly depicted as red-haired in Italian and Spanish art. Writers from Shakespeare to Dickens would identify Jewish characters by giving them red hair, such as the villainous Jewish characters
Shylock Shylock is a fictional character in William Shakespeare's play ''The Merchant of Venice'' (c. 1600). A Venetian Jewish moneylender, Shylock is the play's principal antagonist. His defeat and conversion to Christianity form the climax of the ...
and Fagin.''Shakespeare and the Mediterranean: the selected proceedings of the International Shakespeare Association World Congress, Valencia, 2001'', ''Theatres and Performances'', (University of Delaware Press, 2004), page 40 The antisemitic association persisted into modern times in Soviet Russia. The medieval prejudice against red-hair may have derived from the Ancient biblical tradition, in relation to biblical figures such as Esau and
King David David (; , "beloved one") (traditional spelling), , ''Dāwūd''; grc-koi, Δαυΐδ, Dauíd; la, Davidus, David; gez , ዳዊት, ''Dawit''; xcl, Դաւիթ, ''Dawitʿ''; cu, Давíдъ, ''Davidŭ''; possibly meaning "beloved one". w ...
. The Ancient historian Josephus would mistranslate the Hebrew Torah to describe the more positive figure of
King David David (; , "beloved one") (traditional spelling), , ''Dāwūd''; grc-koi, Δαυΐδ, Dauíd; la, Davidus, David; gez , ዳዊት, ''Dawit''; xcl, Դաւիթ, ''Dawitʿ''; cu, Давíдъ, ''Davidŭ''; possibly meaning "beloved one". w ...
as 'golden haired', in contrast to the negative figure of Esau, even though the original Hebrew Torah implies that both King David and Esau had 'fiery red hair'.


Modern-day discrimination

In his 1885 book ''I Say No'', Wilkie Collins wrote "The prejudice against habitual silence, among the lower order of the people, is almost as inveterate as the prejudice against red hair." In his 1895 memoir and history ''The Gurneys of Earlham'', Augustus John Cuthbert Hare described an incident of harassment: "The second son, John, was born in 1750. As a boy he had bright red hair, and it is amusingly recorded that one day in the streets of Norwich a number of boys followed him, pointing to his red locks and saying, "Look at that boy; he's got a bonfire on the top of his head," and that John Gurney was so disgusted that he went to a barber's, had his head shaved, and went home in a wig. He grew up, however, a remarkably attractive-looking young man." In British English, the word "ginger" is sometimes used to describe red-headed people (at times in an insulting manner), with terms such as "gingerphobia" and "gingerism" used by the British media. In Britain, redheads are also sometimes referred to disparagingly as "carrot tops" and "carrot heads". (The comedian "
Carrot Top Scott Thompson (born February 25, 1965), known professionally as Carrot Top, is an American actor and stand-up comedian. Early life Thompson was born in Rockledge, Florida, and grew up in Cocoa. He is the youngest son of a NASA engineer. He ...
" uses this
stage name A stage name is a pseudonym used by performers and entertainers—such as actors, comedians, singers, and musicians. Such professional aliases are adopted for a wide variety of reasons and they may be similar, or nearly identical, to an individu ...
.) "Gingerism" has been compared to racism, although this is widely disputed, and bodies such as the UK Commission for Racial Equality do not monitor cases of discrimination and
hate crime A hate crime (also known as a bias-motivated crime or bias crime) is a prejudice-motivated crime which occurs when a perpetrator targets a victim because of their membership (or perceived membership) of a certain social group or racial demograph ...
s against redheads. Nonetheless, individuals and families in Britain are targeted for harassment and violence because of their hair colour. In 2003, a 20-year-old was stabbed in the back for "being ginger". In 2007, a UK woman won an award from a tribunal after being sexually harassed and receiving abuse because of her red hair; in the same year, a family in Newcastle upon Tyne, was forced to move twice after being targeted for abuse and hate crime on account of their red hair. In May 2009, a schoolboy committed suicide after being bullied for having red hair. In 2013, a fourteen-year-old boy in Lincoln had his right arm broken and his head stamped on by three men who attacked him "just because he had red hair". The three men were subsequently jailed for a combined total of ten years and one month for the attack. A possible fringe theory explaining the historical and modern mistreatment of red-heads supposedly stems from subjugation and consequent persecution of Celtic Nations. This prejudice has been satirised on a number of TV shows. English comedian Catherine Tate (herself a redhead) appeared as a red-haired character in a running sketch of her series '' The Catherine Tate Show''. The sketch saw fictional character
Sandra Kemp Sandra Kemp (born 10 March 1957) is an academic and curator with a background in English literature. She is Director, The Ruskin - Library, Museum and Research Centre at University of Lancaster and Visiting Professor in the Department of Material ...
, who was forced to seek solace in a refuge for ginger people because she had been ostracised from society. The British comedy '' Bo' Selecta!'' (starring redhead Leigh Francis) featured a spoof documentary which involved a caricature of Mick Hucknall presenting a show in which celebrities (played by themselves) dyed their hair red for a day and went about daily life being insulted by people. (Hucknall, who says that he has repeatedly faced prejudice or been described as ugly on account of his hair colour, argues that Gingerism should be described as a form of racism.) Comedian Tim Minchin, himself a redhead, also covered the topic in his song "Prejudice". The pejorative use of the word "ginger" and related discrimination was used to illustrate a point about racism and prejudice in the " Ginger Kids", "
Le Petit Tourette "Le Petit Tourette" (; meaning "The Little Tourette") is the eighth episode of the eleventh season of the animated television series '' South Park'', and the 161st episode overall. It first aired on Comedy Central in the United States on October ...
", "
It's a Jersey Thing "It's a Jersey Thing" is the ninth episode of the fourteenth season of the American animated television series ''South Park'', and the 204th episode of the series overall. It premiered on Comedy Central in the United States on October 13, 2010. In ...
" and "
Fatbeard "Fatbeard" is the seventh episode of the thirteenth season of the American animated television series ''South Park''. The 188th overall episode of the series, it originally aired on Comedy Central in the United States on April 22, 2009 and in the ...
" episodes of ''
South Park ''South Park'' is an American animated sitcom created by Trey Parker and Matt Stone and developed by Brian Graden for Comedy Central. The series revolves around four boys Stan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormickand th ...
''. Film and television programmes often portray school
bullies A bully is someone responsible for bullying, using aggression to intimidate or dominate others. Bully may also refer to: Animals * American Bully, a breed of dog * Bull Terrier or bully, a breed of dog * '' Gobiomorphus'' or bully, an Australia ...
as having red hair. However, children with red hair are often themselves targeted by bullies; "Somebody with ginger hair will stand out from the crowd," says anti-bullying expert
Louise Burfitt-Dons Louise Burfitt-Dons, (''née'' Byres; born 22 October 1953) is a British novelist, humanitarian, and former Conservative candidate. Burfitt-Dons is best known for her anti-bullying work as the founder of the charity Act Against Bullying and ...
. In Australian slang, redheads are often nicknamed "Blue" or "Bluey". More recently, they have been referred to as "rangas" (a word derived from the red-haired ape, the orangutan), sometimes with derogatory connotations. The word "rufus" has been used in both Australian and British slang to refer to red-headed people; based on a variant of rufous, a reddish-brown color. In November 2008 social networking website Facebook received criticism after a 'Kick a Ginger' group, which aimed to establish a "National Kick a Ginger Day" on 20 November, acquired almost 5,000 members. A 14-year-old boy from Vancouver who ran the Facebook group was subjected to an investigation by the Royal Canadian Mounted Police for possible hate crimes. In December 2009 British supermarket chain Tesco withdrew a Christmas card which had the image of a child with red hair sitting on the lap of Father Christmas, and the words: "''Santa loves all kids. Even ginger ones''" after customers complained the card was offensive. In October 2010, Harriet Harman, the former Equality Minister in the British government under Labour, faced accusations of prejudice after she described the red-haired Treasury secretary Danny Alexander as a "ginger rodent". Alexander responded to the insult by stating that he was "proud to be ginger". Harman was subsequently forced to apologise for the comment, after facing criticism for prejudice against a minority group. In September 2011, Cryos International, one of the world's largest
sperm bank A sperm bank, semen bank, or cryobank is a facility or enterprise which purchases, stores and sells human semen. The semen is produced and sold by men who are known as sperm donors. The sperm is purchased by or for other persons for the purpose o ...
s, announced that it would no longer accept donations from red-haired men due to low demand from women seeking artificial insemination.


Use of term in Singapore and Malaysia

The term '' ang mo'' () in Hokkien (
Min Nan Southern Min (), Minnan (Mandarin pronunciation: ) or Banlam (), is a group of linguistically similar and historically related Sinitic languages that form a branch of Min Chinese spoken in Fujian (especially the Minnan region), most of Taiwan ...
) Chinese, meaning "red-haired", is used in Malaysia and Singapore, although it refers to all white people, never exclusively people with red hair. The epithet is sometimes rendered as ''ang mo kui'' () meaning "red-haired devil", similar to the Cantonese term '' gweilo'' ("foreign devil"). Thus it is viewed as racist and derogatory by some people. Others, however, maintain it is acceptable. Despite this ambiguity, it is a widely used term. It appears, for instance, in Singaporean newspapers such as '' The Straits Times'', and in television programmes and films. The Chinese characters for ''ang mo'' are the same as those in the historical Japanese term ''Kōmō'' (), which was used during the Edo period (1603–1868) as an epithet for Dutch or Northern European people. It primarily referred to Dutch traders who were the only Europeans allowed to trade with Japan during ''
Sakoku was the Isolationism, isolationist Foreign policy of Japan, foreign policy of the Japanese Tokugawa shogunate under which, for a period of 265 years during the Edo period (from 1603 to 1868), relations and trade between Japan and other countri ...
'', its 200-year period of isolation. The historic fortress
Fort San Domingo Fort Santo Domingo is a historical fortress in Tamsui District, New Taipei City, Taiwan. It was originally a wooden fort built in 1628 by the Spanish Empire, who named it "Fort Santo Domingo". However, the fort was then destroyed by the Spani ...
in Tamsui, Taiwan was nicknamed ''ang mo sia'' ().


The name "Rory"

The mainly masculine given name ''Rory'' – a name of Goidelic origin, which is an anglicisation of the ga, Ruairí/''Ruaidhrí/Ruaidhrígh/Raidhrígh,'' gd, Ruairidh and
Manx Manx (; formerly sometimes spelled Manks) is an adjective (and derived noun) describing things or people related to the Isle of Man: * Manx people **Manx surnames * Isle of Man It may also refer to: Languages * Manx language, also known as Manx ...
: ''Rauree'' which is common to the Irish, Highland Scots and their diasporas for the given name "Rory". – means "red-haired king", from ''ruadh'' ("red-haired" or "rusty") and ''rígh'' ("king"). However, present bearers of the name are by no means all red-haired themselves.


Red hair festivals

There has been an annual Redhead Day festival in the Netherlands that attracts red-haired participants from around the world. The festival was held in Breda, a city in the south east of the Netherlands, prior to 2019, when it moved to Tilburg. It attracts participants from over 80 countries. The international event began in 2005, when Dutch painter Bart Rouwenhorst decided he wanted to paint 15 redheads. The Irish Redhead Convention, held in late August in County Cork since 2011, claims to be a global celebration and attracts people from several continents. The celebrations include crowning the ginger King and Queen, competitions for the best red eyebrows and most freckles per square inch, orchestral concerts and carrot throwing competitions. A smaller red-hair day festival is held since 2013 by the UK's anti bullying alliance in London, with the aim of instilling pride in having red-hair. Since 2014, a red-hair event is held in Israel, at Kibbutz Gezer (Carrot), held for the local Israeli red hair community, including both Ashkenazi and Mizrahi red-heads. However, the number of attendees has to be restricted due to the risk of rocket attacks, leading to anger in the red-hair community.Finally, a Red Alert This Summer That (Most) Israelis Welcomed
Roy Arad, Haaretz.com, 30 August 2014.
The organizers state; "The event is a good thing for many redheads, who had been embarrassed about being redheads before." The first and only festival for red heads in the United States was launched in 2015. Held in Highwood, Illinois, Redhead Days draws participants from across the United States. A festival to celebrate the red-haired people is held annually in Izhevsk (Russia), the capital of Udmurtia, since 2004. MC1R Magazine is a publication for red-haired people worldwide, based in Hamburg, Germany.


Religious and mythological traditions

In ancient Egypt, red hair was associated with the deity Set as well as Ramesses II. In the '' Iliad'', Achilles' hair is described as (), usually translated as blonde, or golden but sometimes as red or tawny. His son Neoptolemus also bears the name Pyrrhus, a possible reference to his own red hair. The Norse god Thor is usually described as having red hair. The Hebrew word usually translated "ruddy" or "reddish-brown" (''admoni'' , from the root ''ADM'' , see also
Adam Adam; el, Ἀδάμ, Adám; la, Adam is the name given in Genesis 1-5 to the first human. Beyond its use as the name of the first man, ''adam'' is also used in the Bible as a pronoun, individually as "a human" and in a collective sense as " ...
and Edom) was used to describe both Esau and David. Early artistic representations of
Mary Magdalene Mary Magdalene (sometimes called Mary of Magdala, or simply the Magdalene or the Madeleine) was a woman who, according to the four canonical gospels, traveled with Jesus as one of his followers and was a witness to crucifixion of Jesus, his cru ...
usually depict her as having long flowing red hair, although a description of her hair color was never mentioned in the Bible, and it is possible the color is an effect caused by pigment degradation in the ancient paint. Judas Iscariot is also represented with red hair in
Spanish culture The culture of ''Spain'' is based on a variety of historical influences, primarily based on the culture of ancient Rome, Spain being a prominent part of the Greco-Roman world for centuries, the very name of Spain comes from the name that the Rom ...
and in the works of William Shakespeare, reinforcing the negative stereotype.


See also

* Black hair * Brown hair * Erythrism – in non-human animals * '' How to be a Redhead'' *
List of redheads This list includes people with natural red hair. Red or ginger hair may come in a variety of shades - from Blond, strawberry blond to auburn (color), auburn. With only 2% of the population having red hair, red is the rarest natural hair-colora ...


Notes


References


Further reading

*


External links

{{Hair colors Stereotypes Hair color