Why weighted walking turns your cardio session into weight training.

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

Have 34 minutes to spare each week? Then you can put on muscle and lose fat fast. Sounds like magic, but it’s the science of making workouts smarter and more efficient—and it’s scientifically proven.

Repeated exercise, or wasting, can change the way key genes work.