Mutant individuals, or those that carry genetic abnormalities, often supply the variety that is necessary to survival of a population. It is the variation in genetic code which gives some individuals a unique advantage - larger capacities, ability to resist disease, etc.
Many of the elements of mental health are needed for everyday life. One aspect is having poise under pressure. It is also important to be able to deal with adversity and experience new situations. Lastly, sports help participants build their self-esteem.
