Stay physically active

There are many reasons to exercise. But when you're struggling with pain, one of the best reasons is for relief. Aerobic or "cardio" exercise — which uses your large muscle groups and raises your heart rate — releases endorphins, the feel-good chemicals that act as your body's natural painkillers.

How much exercise is enough to make a difference? Research suggests that 30 to 45 minutes of low-intensity aerobic exercise (such as brisk walking) five or six days a week is your best bet — and even four days of exercise a week will have some effect.

Before you start a new exercise program, however, talk to your health care professional if you're older than age 40, have been sedentary, have risk factors for coronary heart disease or have chronic health problems. If you have pain from an injury, recent surgery, a physical disability or a chronic condition such as osteoporosis, it's best to work with a physical therapist or exercise physiologist to be sure you can exercise safely and avoid hurting yourself.