Fitness programs can be built around just about anything. CrossFit is based on the philosophy that constantly varied movements performed with moderate intensity improve physical competence. Yoga is ...

HIIT once boosted your fitness, now it leaves you shattered. Learn how experts suggest balancing Zone 2 and intervals for women over 40.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Contrary to popular belief, you don’t have to be dripping in sweat and totally out of breath after every ...

When I first started running seriously, I thought I had to be out of breath and dripping sweat with my heart thumping after every single run. But when I learned that my runs can still be effective for ...

Few would disagree that cardio, also called aerobic exercise, is good for your health. Of the 10 most common chronic diseases, seven are "favorably influenced by regular physical activity," according ...