A sniffle is the instinctive action of inhaling quickly in order to prevent

mucus Mucus ( ) is a slippery aqueous secretion produced by, and covering, mucous membranes. It is typically produced from cells found in mucous glands, although it may also originate from mixed glands, which contain both serous and mucous cells. It ...

from flowing from one's nasal cavity, as an alternative to

blowing the nose Nose-blowing is the act of expelling nasal mucus by exhaling forcefully through the Human nose, nose. This is usually done into a facial tissue or handkerchief, facial tissues being more hygienic as they are disposed of after each use while handke ...

Physiology

For a fraction of a second, the performer

inhale Inhalation (or Inspiration) happens when air or other gases enter the lungs. Inhalation of air Inhalation of air, as part of the cycle of breathing, is a vital process for all human life. The process is autonomic (though there are exceptions ...

s strongly, pulling mucus from the outer part of the nasal cavity higher up, even into the

sinus Sinus may refer to: Anatomy * Sinus (anatomy), a sac or cavity in any organ or tissue ** Paranasal sinuses, air cavities in the cranial bones, especially those near the nose, including: *** Maxillary sinus, is the largest of the paranasal sinuses, ...

. This action is generally repeated every few seconds or minutes as the pulled mucus returns to the outer part of the nasal cavity, until the mucus stops returning (due to the mucus having drained into the throat, the nose having been blown to remove the mucus, or some other factor). Sniffling and having a

runny nose Rhinorrhea, rhinorrhoea, or informally runny nose is the free discharge of a thin mucus fluid from the nose; it is a common condition. It is a common symptom of allergies (hay fever) or certain viral infections, such as the common cold or COVID- ...

are not always associated with

sneezing A sneeze (also known as sternutation) is a semi-autonomous, convulsive expulsion of air from the lungs through the nose and mouth, usually caused by foreign particles irritating the nasal mucosa. A sneeze expels air forcibly from the mouth and ...

cough A cough is a sudden expulsion of air through the large breathing passages that can help clear them of fluids, irritants, foreign particles and microbes. As a protective reflex, coughing can be repetitive with the cough reflex following three ph ...

ing. Sniffling is not necessarily related to illness. In addition to

allergies Allergies, also known as allergic diseases, refer a number of conditions caused by the hypersensitivity of the immune system to typically harmless substances in the environment. These diseases include hay fever, food allergies, atopic derm ...

and

colds The common cold or the cold is a viral infectious disease of the upper respiratory tract that primarily affects the respiratory mucosa of the nose, throat, sinuses, and larynx. Signs and symptoms may appear fewer than two days after exposur ...

, it can be a result of being in cold temperatures, as a way to hold back tears, and as a

tic A tic is a sudden, repetitive, nonrhythmic motor movement or vocalization involving discrete muscle groups.American Psychiatric Association (2000)DSM-IV-TR: Tourette's Disorder.''Diagnostic and Statistical Manual of Mental Disorders'', 4th ed., ...

. When it is related to illness, sniffling can aggravate or extend the illness (relative to not sniffling), by returning to the sinuses whatever substance (such as allergens) the mucus that is sniffled back was removing. Reducing the need to sniffle generally involves reducing the symptoms causing the excessive mucus, often through

antihistamines Antihistamines are drugs which treat allergic rhinitis, common cold, influenza, and other allergies. Typically, people take antihistamines as an inexpensive, generic (not patented) drug that can be bought without a prescription and provides ...

decongestants A decongestant, or nasal decongestant, is a type of pharmaceutical drug that is used to relieve nasal congestion in the upper respiratory tract. The active ingredient in most decongestants is either pseudoephedrine or phenylephrine (the latter of ...

, or treating the root cause, such as by using an

air purifier An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics, and at reducing or eliminatin ...

to remove allergens. More immediate relief can be had by either

nasal irrigation Nasal irrigation (also called nasal lavage, nasal toilet, or nasal douche) is a personal hygiene practice in which the nasal cavity is washed to flush out mucus and debris from the Human nose, nose and sinuses, in order to enhance Obligate nasal ...

or blowing the nose, most often into a

facial tissue Facial tissue and paper handkerchief refers to a class of soft, absorbent, disposable papers that are suitable for use on the face. They are disposable alternatives for cloth handkerchiefs. The terms are commonly used to refer to the type of tis ...

handkerchief A handkerchief (; also called a hankie or, historically, a handkercher or a ) is a form of a kerchief or bandanna, typically a hemmed square of thin fabric which can be carried in the pocket or handbag for personal hygiene purposes such as ...

. Some seek out a bathroom and blow their noses into a sink, which they then wash along with their hands.

Psychology

Many people are unconscious of their sniffling, hence the stereotype of children as more apt to sniffle, since they are less conscious of stigma. The sharp high pitched noise of a sniffle can easily become both inaudible to the performer, who experiences it as a relief, and irritating to those around the sniffler.

Sociology

In many cultures, blowing one's nose in public is considered impolite, and in reaction, people can make a habit of sniffling. In many other cultures, it is considered very impolite to sniffle.https://fr.wikisource.org/wiki/Petit_manuel_de_politesse_et_de_savoir-vivre_%C3%A0_l%27usage_de_la_jeunesse/Ce_qu%E2%80%99il_faut_faire_et_ce_qu%E2%80%99il_faut_%C3%A9viter_lorsqu%E2%80%99on_est_en_soci%C3%A9t%C3%A9_chez_soi,_ou_chez_les_autres "The sniffles" can also refer by

metonymy Metonymy () is a figure of speech in which a concept is referred to by the name of something closely associated with that thing or concept. Etymology The words ''metonymy'' and ''metonym'' come from grc, μετωνυμία, 'a change of name ...

to the common cold, though colds often do not result in sniffles and sniffles often are not caused by colds. The sound of sniffles can trigger fight-or-flight reactions or anger (with results up to and including involuntary violence) in some with

misophonia Misophonia is a disorder of decreased tolerance to specific sounds or their associated stimuli that has been characterized using different language and methodologies. Reactions to trigger sounds range from anger and annoyance to activating a fi ...

References

{{Reflist Respiration Symptoms

Physiology

Psychology

Sociology

See also

References