The World Heart Federation warned in September, 2003 that failure to exercise is as bad for one's health as smoking a pack of cigarettes every day. Physical inactivity doubles the chances of developing heart disease and increases the risk of diabetes and high blood pressure.
Because it increases the risk for coronary artery disease by almost two times, a lack of exercise is nearly as dangerous to the heart as smoking, abnormal cholesterol levels, or hypertension. Sedentary living is the fourth major cardiac risk factor.
Exercise that strengthens the abdominal musculature sometimes helps reduce low back pain. Further, strenuous exercise involving significant movement of the lower back has resulted in pain reduction/elimination.