Spinal muscular atrophy is a genetically inherited disorder that causes muscle weakness. Adults can get spinal muscular atrophy, but it’s rare in adults and progresses slowly. It doesn’t typically ...

A comprehensive guide to max out your gains and fill out your shirtsleeves, according to exercise experts.

If you want more strength, defined muscles, and all the incredible health benefits that come from strength training, you’ll get better results if you lift heavy weights. Read on to find out why. First ...

Muscle knots are highly irritated muscle fibers that have tightened into a ball in one area of your muscle. These painful, tender spots can feel sore and often occur in your upper back, shoulders, or ...

If you’ve spent a ton of time in Tartarus by this point and have been diligently opening chests, chances are good that you already have a Muscle Drink in your possession. If that’s the case, just go ...

Muscle cramps are a common issue that many people get from time to time. If one of your muscles feels like it’s contracting (getting tight) for no reason — and you can’t get it to relax — that’s a ...

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. The word “toning” is ...

FORT WAYNE, Ind. (WANE) Ahead of Lutheran Hospital’s 2016 Get Fit Expo happening this weekend, the hospital’s Optimum Performance Sports is helping people get to know their body better, focusing on a ...

Assistant Dean, Western Centre for Health Research and Education, Victoria University Many of us know the feeling of a cramp – whether you’ve been struck down on the sports field or woken with a start ...