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 ...

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

Medically reviewed by Jonathan Purtell, RDN Key Takeaways You can build muscle while in a calorie deficit by eating enough protein and doing resistance training. Eating protein helps preserve lean ...

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 ...

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

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 ...

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.

As people age, muscles naturally lose mass and strength, a condition known as sarcopenia. The decline can make everyday activities harder and increases the risk of falls, disability, and early death.

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 ...

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 ...

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