2008.01.04
"...The January issue of Mayo Clinic Health Letter lists some of the benefits of 30 minutes of exercise a day:
- Lower blood pressure: A reduction of 5 to 10 millimeters of mercury (mm Hg) is possible. In some cases, that’s enough to prevent or reduce the need for blood pressure medications.
- Improve cholesterol: Exercise often increases the concentration of high-density lipoprotein (HDL or “good” cholesterol in the blood), especially when accompanied by weight loss. Exercise also helps reduce triglyceride levels.
- Prevent or manage type 2 diabetes: Exercise helps insulin work better, lowering blood sugar.
- Manage weight: Coupling exercise with a healthy diet is the best way to shed fat and maintain a healthier body composition.
- Prevent osteoporosis: Exercise may increase bone density and protect against bone mass decline, especially if weight-bearing activities are involved.
- Prevent cancer: Exercise has been shown to strengthen the immune system, improve circulation, reduce body fat and speed digestion. Each has a role in preventing cancer, particularly cancers of the colon, prostate, uterine lining and breast.
- Maintain mental well-being: Exercise may help reduce stress, improve mild-to-moderate depression and anxiety, improve sleep and boost moods.
- Increase energy and stamina: A lack of energy often results from inactivity, not age.""
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