AmbidexterityAmbidexterity is the ability to use both the right and left hand equally well. When referring to an object, the word ambidextrous means that the object is equally suitable for right-handed and left-handed people. When referring to a person, it means that the person has no marked preference for the use of the right or left hand. Only about one percent of people are naturally ambidextrous, which equates to about 80,000,000 people in the world.
Human biologyHuman biology is an interdisciplinary area of academic study that examines humans through the influences and interplay of many diverse fields such as genetics, evolution, physiology, anatomy, epidemiology, anthropology, ecology, nutrition, population genetics, and sociocultural influences. It is closely related to the biomedical sciences, biological anthropology and other biological fields tying in various aspects of human functionality.Cross-dominanceCross-dominance, also known as mixed-handedness, hand confusion, or mixed dominance, is a motor skill manifestation in which a person favors one hand for some tasks and the other hand for others, or a hand and the contralateral leg. For example, a cross-dominant person might write with the left hand and do everything else with the right one, or manage and kick a ball preferentially with the left leg.
Fine motor skillFine motor skill or dexterity is the coordination of small muscles in movement with the eyes, hands and fingers. The complex levels of manual dexterity that humans exhibit can be related to the nervous system. Fine motor skills aid in the growth of intelligence and develop continuously throughout the stages of human development. Types of motor skillsMotor skills are movements and actions of the bone structures.
SportA sport is a physical activity or game, often competitive and organised, that maintains or improves physical ability and skills. Sport may provide enjoyment to participants and entertainment to spectators. The number of participants in a particular sport can vary from hundreds of people to a single individual. Physical activity is associated with various aspects of health and longevity.BoxingCombat sport and martial artA woman's boxing match in Uruguay in 2008Boxing is a combat sport and martial art. Taking place in a boxing ring, it involves two opponents throwing punches at each other for a predetermined amount of time. It is usually done wearing protective equipment, such as protective gloves, hand wraps, and mouthguards.
BaseballBat-and-ball gameBaseball is a bat-and-ballsport played between two teams of nine players each, taking turns batting and fielding. The game occurs over the course of several plays, with each play beginning when a player on the fielding team, called the pitcher, throws a ball that a player on the batting team, called the batter, tries to hit with a bat.
HandA hand is a prehensile, multi-fingered appendage located at the end of the forearm or forelimb of primates such as humans, chimpanzees, monkeys, and lemurs. A few other vertebrates such as the koala (which has two opposable thumbs on each "hand" and fingerprints extremely similar to human fingerprints) are often described as having "hands" instead of paws on their front limbs. The raccoon is usually described as having "hands" though opposable thumbs are lacking.
FencingFencing is a combat sport that features sword fighting. It consists of three primary disciplines: foil, épée, and sabre (also spelled saber), each with its own blade and set of rules. Most competitive fencers specialise in one of these disciplines. The modern sport gained prominence near the end of the 19th century, evolving from historical European swordsmanship.
EpigeneticsStudy of DNA modifications that do not change its sequenceEpigenetic mechanismsEpigenetics is the study of changes in gene expression that occur without altering the DNA sequence. The Greek prefix epi- (ἐπι- "over, outside of, around") in epigenetics implies features that are "on top of" or "in addition to" the traditional DNA-sequence-based mechanism of inheritance.
TennisTennis is a racket sport that is played either individually against a single opponent (singles) or between two teams of two players each (doubles). Each player uses a tennis racket strung with a cord to strike a hollow rubber ball covered with felt over or around a net and into the opponent's court. The objective is to manoeuvre the ball in such a way that the opponent is not able to play a valid return.
CricketCricket is a bat-and-ball game that is played between two teams of eleven players on a field, at the centre of which is a 22-yard (20-metre; 66-foot) pitch with a wicket at each end, each comprising two bails (small sticks) balanced on three stumps.
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