Lifting too heavy weighcan lead to injury and too light can delay progress. Learn how to test whether you're using the right dumbbell weight with this assessment.

When I was trained as an American physician, I was never exposed to the concept of muscle strength testing that is utilized as part of the pseudo-scientific field of applied kinesiology (AK). To be ...

Muscle growth requires patience. Experts break down exactly how long it will take you to see visible muscle definition and what habits you need to achieve it.

Still dealing with a tight hip or weak glute—despite all the foam rolling, stretching, and strengthening? Or, maybe you’ve had an injury that keeps flaring up, even though you thought it was finally ...

This story is from Manual, GQ’s flagship newsletter offering useful advice on style, health, and more, four days a week. Sign ...

Sherri Gordon, CLC is a certified professional life coach, author, and journalist covering health and wellness, social issues, parenting, and mental health. She also has a certificate of completion ...

Even if you’re logging strong miles, age-related muscle loss can creep in. The fix is surprisingly straightforward.