It might be more than you think.

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 ...

Plus, exactly how to train to sculpt your muscles.

Many people start strength training because they want to build muscle. That’s a great goal – building muscle can help you look and feel great. It improves your metabolism, self-esteem, and overall ...

Ever wonder why some people seem to pack on muscle effortlessly while others spend months in the gym with little to show for it? Muscle growth isn't just about lifting weights -- it's a complex ...

Eat 1.6-2.2 grams of protein per kilogram of your body weight daily to optimize muscle growth. Try pairing a high-protein diet with resistance training to build muscle. Animal sources of protein ...

The physical changes that come with training are a sign that you are doing something right. They are a display of hard work, ...

Brian is a New York–based science and health journalist. His work has been published by The Atlantic, The Paris Review, The New York Times For Kids, CBS News, The TODAY Show, Barron's PENTA, Engadget, ...

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. Whether you’ve been lifting for years or ...

Let's face it: you’re probably not as lean and muscular as you were 10 years ago – especially if you’re well past your 30s, when most people tend to start the unfortunate process of losing muscle mass ...