"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." All it takes is a tweak or two, and virtually any exercise for any muscle group can instantly become a ...

Keeping hips and knees at a 90-degree angle and using back support may help alleviate lower back pain. It is best to avoid slumped positions and sitting cross-legged for long periods. A person may be ...

Are you sitting comfortably? Just pause for a moment, and without adjusting, notice your posture. What are your legs doing? Are they crossed? And are you a right or left crosser? Some 62 percent of ...