Backpain

The jury is out (again) about the benefits of "warm-up" stretches prior to any exertion, but if back pain tends to strike with little notice, try doing about 10 partial sit-ups first. You know, the kind where you lie on your back with knees bent, cross your arms over your chest,and use your abdominal muscles (NOT your neckmuscles)to raise just your shoulders off the floor. Control your descent back to the floor and repeat. Just a breathe of fresh air and the temporary isolation will clear your mind and renew the energy needed to cope with the rest of the day.