The answer may surprise you.

It might be more than you think.

Plus, exactly how to train to sculpt your muscles.

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 ...

Many dedicated gym-goers find themselves frustrated after months of consistent heavy lifting with minimal muscle growth to show for their efforts. The answer often lies beyond the weight room, in ...

Some of the best muscle-building foods include protein-rich chicken, salmon, and lentils. You can pair dietary changes with ...

Are you looking to grow your muscles? Growing your muscles is often a goal for many of us. Some of us would like to grow our muscles to obtain a particular physique, while others just want to become ...

Add Yahoo as a preferred source to see more of our stories on Google. Starting a new strength training program? Here's what you need to know about how long it takes to build muscle. When it comes to ...

12-minute bodyweight workout after 55, with exclusive quotes from certified trainer Michael Betts. Get the 6-move plan.

Learn how combining creatine and BCAAs can boost your workout energy, speed up muscle repair, and help you reach your fitness ...

One finding shows up again and again in hypertrophy research: when weekly training volume climbs, muscle growth tends to ...

If you have ever lifted a weight, you know the routine: challenge the muscle, give it rest, feed it and repeat. Over time, it ...