Weight fluctuations don't always reflect loss or gain of fat or muscle. The scale can go up or down based on what you've eaten, your workouts, and time of day. Weighing yourself under similar ...

This article was reviewed by Felix Gussone, MD. Key Takeaways: Body composition offers a clearer picture of health than ...

Adipocytes and scar tissue form during skeletal muscle degeneration. Two new studies reveal that adipocytes and fibroblasts in skeletal muscle derive from a population of bipotent progenitors that ...

Body composition is a way to measure and monitor your fat mass and your fat-free mass. Fat-free mass includes any tissue that isn’t fat—muscle, bone, water, blood, cells, organs, and so forth. While ...

A pound of muscle weighs the same as a pound of fat, but muscle is denser and takes up less space. You can gain muscle and stay the same weight if you're losing fat at the same time. Muscle helps ...