"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." THE LEG CURL is one of the best machines—and best methods, period—for building hamstring strength and ...

Stress can leave your muscles feeling tight and needing a stretch. Challenging workouts can, too. Long, hard runs? Yep. Heck, just sitting at your desk or driving for a long time can leave you tight!

There are tons of different stretching exercises—you can stretch the whole body, or just focus on specific areas like the legs or hips. There are also static and dynamic stretches. The choice between ...