"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." A CALORIE SURPLUS isn’t always a bad thing. Do it right and you can juice your activity level while ...

There's a lot of talk about lean muscle compared to bulk muscle, but experts say it's not worth differentiating the two. Learn why.

I used to think bulking was just about eating more food. Turns out, I was completely wrong. After years of spinning my wheels and gaining more fat than muscle, I discovered that when you eat matters ...