You're relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it's a muscle in your arm, your leg, or ...

Training with sore muscles isn’t always a mistake—but doing it wrong can slow your progress. Understanding how your body ...

Some evidence suggests that exercise can reverse or delay the cognitive decline associated with aging, but experts say future studies should allow for time and variations among individuals to see how ...

There’s a robust molecular language being spoken between your muscles and your brain. We’ve often thought about muscle as a thing that exists separately from intellect—and perhaps that is even ...

In her book, “On Muscle: The Stuff That Moves Us and Why it Matters," journalist and author Bonnie Tsui explores the biology and beauty of muscles. (Drawing by Bonnie Tsui) For a long time, ...

You're probably underestimating your muscles. In fact, almost everyone does. While everyone knows, for instance, that muscles are important for function—activities such as walking, climbing, and ...