Think about behavior in the context of sporting events. There are some sports, such as swimming and cycling, for which males shave body hair. Is this act seen by the public as a norm violation if it is done to make the athlete perform better?

Although a few people begin life with an unclear sexual identity, the overwhelming majority begin with a definite sex and quickly receive societal messages about how to behave. In fact, virtually all societies have established social distinctions between females and males that do not inevitably result from biological differences between the sexes (such as women's reproductive capabilities).

Gender role is defined as expectations regarding the proper behavior, attitudes, and activities of males and females. The application of dominant gender roles leads to many forms of differentiation between women and men. Both sexes are capable of learning to cook and sew, yet most Western societies determine that women should perform those tasks. Both men and women are capable of learning to weld and to fly airplanes, but those functions are generally assigned to men (Schaefer, 2006).

Sports have commonly been classified as masculine, while some sports are deemed to be feminine. In some aerobic sports like swimming and cycling men have to shave the body, which is one of the rules of this sport competition (Thinking Made Easy, 2009).

One of the main reasons why swimmers shave is to increase their speed. Shaving off body hair makes a swimmer's body smoother, thus creating less drag in the water. Though shaving may only trim a few fractions of a second off a swimmer's finishing time, in a close race, that difference could prove to the margin of victory (Brown, 2012). Besides removing the dead skin cells, shaving body makes the swimmers feel faster in water.

Significantly hairy men may find that their body hair generates a lot of heat, which can lead to excess perspiration and body odor. Shaving armpit hair, chest hair or even hair around the genitals can reduce sweating, and make men feel cleaner, especially in the summer heat (Lynn, 2011).

Society has a lot of stereotype about different gender behavior. Whereas, the public sees shave body as normal process for the swimmers, however when a men is not in a competition they see it as a norm violation, because only girl should shave the pubic hair. Furthermore, one way to see the difference between man and woman is on the amount of the pubic hair, man tends to have more pubic hair than woman.

To sum up, shave body for athletes is not considered as norm violation. Swimmers shave their body to increase the speed, to generate less heat, and also to remove the dead skin cells. Out of competition, man should not shave the body hair, because it is considered a norm violation.