Plus, as one research study in the journal Sustainability concluded, performing functional fitness classes three times a week ...

Stand with your feet wider than shoulder-width, toes pointed out. Lower into a squat, keeping your chest up and back straight ...

The hamstrings are known as the 'biceps of your legs', and you should be using these movements to pump them up just as hard ...

Bryant Johnson shows you how to use your own body weight to build strength. Bryant Johnson shows you how to use your own body weight to build strength. AARP is a nonprofit, nonpartisan organization ...