In Sheldon's system, human beings can be classified as to body build in terms of three extreme body types: endomorphic, or round, fat type; mesomorphic, or muscular type; and ectomorphic, or slim, linear type.
Answer: Most people are unique combinations of the three body types: Ectomorph, Mesomorph, and Endomorph. Nutritionists, exercise physiologists, and even doctors use this classification system to help design effective, individualized fitness plans.
It helps prevent illness because they washed their hands and if they didn't 1 that would be nasty and 2 no one want pee or poop on their food that they are going to eat.
