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 ...

Forget the obsession with the scale; as you enter your 50s, physical strength and muscle volume become far more critical to ...

Most new lifters walk into the gym with one main goal: pack on mass. It’s the top priority for almost every young gun—and even more so for skinny guys just getting started. So who better to turn to ...

Here's how muscle growth, or hypertrophy, works and four ways to optimize hypertrophy including nutrition and resistance ...

The national guidelines suggest a minimum of two days per week of muscle-strengthening activity, although upping that to ...

A recent study from Australia suggests that high intensity interval training may be optimal for body composition in older adults, by helping to lose fat while preserving muscle.

Pumping iron isn’t the only way to pump the brakes on age-related muscle loss. While weight training has long been lauded as the key to building and maintaining muscle mass, experts say there are ...

New research suggests popular weight loss drugs like Ozempic and Wegovy may affect more than just fat, raising questions about muscle strength and organ size after significant weight loss. University ...

Far from being "too late", your 60s can be ideal for building strength. Learn how muscle gain supports mobility, bone health, ...

Whether you want to achieve or avoid a muscular look, you should know how muscle changes your body for the better. Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a ...

To build muscle mass, you need around 0.5–0.9 grams of protein per pound of body weight per day. Here's why and other factors ...