YOU'VE PROBABLY HEARD big guys at the gym tossing around the word "hypertrophy" when they talk about their lifting goals — but what does that even mean? Are the principles behind the term just some ...

Here’s what the workout can and can’t do for your fitness. Credit...Eric Helgas for The New York Times Supported by By Danielle Friedman Q: I’ve heard that Pilates can give you long, lean muscles. Is ...

The old saying is that if you want to get big, you must eat big and lift big. Science confirms this, but it is more complicated than simply eating more. It matters what you eat, how much you eat, when ...