Experts say the secret to feeling strong in the long term is to focus less on the size of a muscle and more on what it can ...

Building muscle doesn’t always look the way you'd expect. Even if you've been consistent with your training, sometimes ...

Muscle soreness doesn’t just impact the gym-goer who did one too many deadlifts or the runner training for their first marathon. Pro athletes also deal with it—pretty regularly in fact. And the same ...

At one point or another, we’ve all experienced the unexpected, intense pain of a muscle cramp. Muscle cramps, also known as muscle spasms or charley horses, are the involuntary contraction of muscle ...

Why do you get sore muscles from exercise, and does being sore mean you did a good workout? Can you prevent or get rid of muscle soreness? Read on to find out. You’ve probably felt it: the day or two ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

If you’ve ever struggled to sit down the day after squats, you know exactly what delayed onset muscle soreness (DOMS) feels like. It’s one of those things that pretty much everyone who works out deals ...