Aerobic exercise performed at moderate intensity makes the heart stronger. Hard, strenuous exercise is not needed to improve the health of the heart and lungs. Moderate and continuous exercise is. An aerobic exercise program makes the heart more efficient at delivering oxygen to the body's cells. It makes blood pressure go down.
Exercise lowers the risk for heart attack and heart disease.
The benefits that exercise gives to the heart are hard to pass up. For moderate fitness, do 30-plus minutes of aerobic exercise 3 to 5 times a week. Especially when two out of three heart attack survivors never make a complete recovery. Heart failure disables one out of five survivors. Get a medical checkup before starting any exercise program.