Body types

The three main body types, established by American psychologist William H. Sheldon in the 1940s, are ectomorphs, endomorphs and mesomorphs.

Endomorphs, produce higher levels of cholesterol and triglycerides, the fat in our blood, and tend to be heavier than people in the other two categories.



Mesomorphs, retain calcium better, that helps build stronger bones and thicker muscle mass. They also have more testosterone (even in women) than the other two types.


Ectomorphs, stay slim, in part, because of their higher metabolic rates. Their skinny. They have a hard time packing on weight and must follow precise workout routines if they wish to add significant muscle.