Trying to lift heavier at the gym, improve athletic performance or simply carry day-to-day items with ease? Gaining muscle may be on your to-do list. Muscles support every movement we make, power us ...

Plus, the best exercises to get you started.

Add Yahoo as a preferred source to see more of our stories on Google. A wave of research over the past few years has made it clear that a strength training habit is really important for your health.

If you recently started running or training for a race (even a marathon), it might feel confusing and doubly frustrating to see an increase in weight when you step on the scale. But, that’s actually ...

Despite regular exercise, a person may gain weight for several reasons. These include increased muscle mass, water retention, and stress responses. If a person’s goal is to lose or maintain weight, ...

Plus, tips and testimonials from real women.

Eating the same foods and following the same routine, yet gaining weight? You are in the transition phase, according to a top ...

If you're working out regularly but still gaining weight, there's usually a logical explanation. You’re doing burpees like a maniac, intense planks, muscle-burning squats, eating salads that taste ...