Posture check: Do you stand up straight?By Mayo Clinic staff
Good posture minimizes strain on your joints and muscles, which can help prevent aches and pains. So what's good posture? When you're standing, keep your chest held high and your shoulders back and relaxed. Try not to tilt your head forward, backward or sideways. Pull in your abdomen and buttocks. Make sure your knees are relaxed, not locked. Keep your feet parallel and your weight balanced evenly on both feet.