Lifestyle is our most potent medicine and exercise is especially important for quality of life and longevity. There is no more powerful anti-aging medicine on the planet! The amount and intensity are important and the value of interval training is discussed. There are a myriad of benefits of exercise that include raising HDL cholesterol, lowering blood pressure, reducing stress and depression, holding weight down, and helping to prevent heart attacks, strokes, type 2 diabetes, and cancer. It is fun and should be done on a daily basis if possible.