On a Saturday morning in a research lab at Cal State Fullerton, Andy Galpin, Ph.D., C.S.C.S.*D., approaches my left quadriceps with a hollow-point needle designed to extract a chunk of muscle tissue.

You have 3 different types of muscle: skeletal, smooth, and cardiac. Skeletal muscle alone accounts for over 650 different muscles. Have you ever wondered how many muscles you have in your body? The ...

The back consists of large, complex muscles that support your trunk and spine. There are many types of back muscles, and they are all essential, helping you walk, bend, twist, and hold your body ...

The upright row is an upper-body exercise that builds strength and muscle, but it commonly causes injuries when performed incorrectly. A personal trainer shows you how to fix yours.

An investigation on the International Space Station to learn more about exactly how cells sense gravity could help scientists figure out ways to prevent that muscle loss, in space and on Earth People ...

Mercey Livingston is a health and wellness writer and certified Integrative Nutrition Health Coach. She's written about fitness and wellness for Well+Good, Women's Health, Business Insider, and ...

So you want to gain muscle? We love that for you. There's no better feeling than strength. But when you're actively trying to put on muscle, it can be confusing to see the numbers on the scale ...