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

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. January 26, 2023 Add ...

Muscle fatigue is a decreased ability to create force with your muscles. Electrolyte imbalance and overuse are some of the most common causes of muscle fatigue. Rest and massage are the best ways to ...

Like all great villains, lactic acid has been misunderstood. We’ve been blaming it for the pain we suffer during intense exercise for more than two centuries. There’s nothing worse, we say, than the ...

These protein-packed plant-based meals passed the test with my skeptical trainer, and they'll fuel your gains without the bro ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? When 2025 kicked off, my main goal was to finally make some gains in the gym.

I've had uneven abs and glutes for years, and by that I mean there's a noticeable (at least to me) difference between the size and strength in the muscles on my right and left sides. It may not sound ...

Massages feel good, but do they actually speed muscle recovery? Turns out, they do. Scientists applied precise, repeated forces to injured mouse leg muscles and found that they recovered stronger and ...