It's incredibly important for midlife women to do cardio.

Dr. Lauren Colenso-Semple, PhD, is an expert in the science of strength and muscle building and nutrition. She explains the ...

When I think back to my time in high school and college, the message was clear: Going to the gym was for losing weight and becoming smaller. The weight room—and building muscle—was solely for guys. I ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Having a consistent, keep-coming-back fitness regimen isn’t just about adding years to your life, it’s ...