Bone structure, how easily you gain muscle, and where you tend to store fat all help define your somatotype (body type). Learn how to personalize your fitness goals based on your body type.

Your body type is a combination of your muscles, bones, and overall density. You may fit a single category or be a combination of two. Ectomorphs. People with this body type are naturally long and ...

The concept of somatotypes is based on the understanding that everyone is born with a body type. Body type, or somatotype, is inherited and expresses itself as skeletal structure and body composition.