Add Yahoo as a preferred source to see more of our stories on Google. The human body is a wonderous thing, especially when you consider how intricate and efficient each bodily system is. For instance, ...

Discover the three main types of muscle in the human body and their distinct functions.

As you bite into a crisp apple, your jaw muscle contracts, allowing you to grind the fruit between your teeth. When you climb a flight of stairs, your gluteus maximus (or "glutes") push your body ...

In the 1940s, Dr. William Sheldon organized human body types into endomorphs, mesomorphs and ectomorphs. The three groups differentiate bone structure, muscle and body fat and how each type carries ...

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.

Here’s why some muscle groups respond faster (or slower) to strength training—and what you can do about it.