"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." You've probably heard big guys at the gym tossing around the word "hypertrophy" when they talk about ...

There is perhaps no better way to see the absolute pinnacle of human athletic abilities than by watching the Olympics. But at the Olympics – and at almost all professional sporting events – you rarely ...

MIT scientists find that motor neuron growth increased significantly over 5 days in response to biochemical (left) and mechanical (right) signals related to exercise. The green ball represents cluster ...

Muscle growth is more than just moving heavy weights—it's a complex biological response. In this video, we explain how resistance training creates micro-tears in your muscle fibers, triggering a ...

I’ve always been bookish. I spend most of my time in the lab rather than running, jumping or climbing. But I still have super strong muscles. They’re way bigger than when I was a young. I asked my ...

Why some of us have sculpted, toned and visible muscles and some of us carry a little more flab depends on a lot of factors. Part of it is how and how much you work out, explains Todd Schroeder, ...

People can build muscle by using their muscles more, such as by lifting weights or working out. Eating enough calories and protein is also important. Skeletal muscle is one of the three major muscle ...

Our muscles get stronger when put under stress and now robots could do the same, thanks to a soft gel that becomes harder when exposed to vibration. Zhao Wang at the University of Chicago and his ...