positive effect on all heart-disease factors, according to a German study of 12,000 people published recently. Cholesterol and triglyceride levels, blood pressure, heart rate and body weight were all improved by intense exercise. Among women in the study
of exercise, even if you're overweight. The amount of exercise necessary to achieve a fitness level that greatly reduces disease and mortality risk is the equivalent of brisk walking for 30 minutes a day, five days a week, or running 20-30 minutes a day
