For bodybuilders and fitness enthusiasts, changing body composition often reflects hard work and discipline—but knowing body composition is useful for anyone, and for more than just bragging rights.

Thanks to the ever-improving world of fitness trackers and apps, you've never had more access to personal health data. But which of the dizzying number of markers and metrics should you really be ...

The single most important concept is that “Athletic” and “Muscular” aren’t the same thing. As fitness culture became mainstream (through Instagram, CrossFit, and gym culture), the two terms started to ...

There are various types of body composition tests (more on these below). Still, each one measures the percentages of fat and fat-free mass (muscle and bone) in the body. Knowing these percentages can ...

This article was reviewed by Felix Gussone, MD. Key Takeaways: Body composition offers a clearer picture of health than weight alone, because it reflects your unique proportions of fat, muscle, bone, ...