Exercise and eating healthy are two of the three best things to improve your health (the most important is never smoke or stop). Never smoking is the single best step to good health. Look at the US Nurses Health Study. Not smoking, exercising (30 minutes of brisk walking at least 5 days a wk., and eating more fruits and vegetables) lowered the risk of Cardio Vascular Disease (CVD), mainly heart attacks and strokes (the leading cause of death) by 70%.
Dr. EMB