Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Exercise builds muscle—we just don’t really know why. It might ...

Skeletal muscle mechanics and force generation are governed by complex interactions between contractile proteins and passive structural elements. At the cellular level, the sarcomere – the fundamental ...

To understand what causes muscle fatigue, it’s worth looking at what exactly muscle fatigue is. If you exercise regularly, you may be familiar with the sensation of a dull ache in your muscles or ...

Can muscles remember their younger, fitter selves? Muscle physiology lore has long held that it is easier to regain muscle mass in once-fit muscles than build it anew, especially as we age. But ...

Scientists confirm that your mileage may vary in how you respond to workouts, but everyone benefits in the end.

Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.

Zachary Gillen does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Explore the truth behind the myth that fat turns into muscle. Learn how to effectively lose fat and gain muscle ...

It’s been studied to death for its ability to boost strength, enhance exercise performance, and promote muscle growth—and the ...

Icing muscles after strenuous exercise is not just ineffective, it could be counterproductive, a new study in mice suggests. Credit...Melody Melamed for The New York Times Supported by By Gretchen ...