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. You've probably heard ...

Out are the days of only slogging through grueling high-intensity workouts like CrossFit and bootcamp classes day after day. Nowadays, chiller, low-impact activities, like walking, are having a moment ...

Muscles make up nearly 40% of the human body and power every move we make, from a child’s first steps to recovery after injury. For some, however, muscle development goes awry, leading to weakness, ...

March 2, 2026: We're back on the search for new Muscle Legends. What are the latest Muscle Legends codes? You have a pretty clear objective in Muscle Legends; get jacked and smash any person who ...

Kirstyn Hill has worked as a clinical pediatric and women’s health pharmacist since 2020. She was driven to work with a patient population that is not often able to easily speak up for themselves and ...

Eating enough to build muscle while still keeping body fat in check can be a challenge for anyone who wants to feel stronger, fitter, and more confident without obsessing over calories. For many women ...

For over 5 years, Arthur has been professionally covering video games, writing guides and walkthroughs. His passion for video games began at age 10 in 2010 when he first played Gothic, an immersive ...

Muscle cramps can result from dehydration, mineral loss, or overuse during exercise. Kidney failure and diabetes may increase your likelihood of muscle cramps. Staying hydrated and stretching can help ...

This story is from Manual, GQ’s flagship newsletter offering useful advice on style, health, and more, four days a week. Sign up here to get it in your inbox. Despite what many workout equipment ...

Aging changes how you train, but it doesn’t eliminate your ability to grow. A top coach explains what needs to shift in your 50s. Consistent strength training in your 50s can still build muscle and ...

More than 30 rare muscular dystrophy types cause progressive muscle weakness from inherited gene mutations. Combined, they affect about 1 in 5,000 to 8,000 people. Common subtypes vary by age of onset ...

Studies on the neurons of mice suggest our own human endurance may have more to do with the brain than our physique. Regular exercise strengthens muscles and improves endurance—but new research ...