If you have atherosclerosis, exercise may allow some compensation for the reduced flow of blood and oxygen through your coronary arteries. Your collateral circulation may be improved, and the oxygen demands of your heart muscle may be reduced by a lower heart rate, lower blood pressure, and other beneficial  changes of your heart muscle  that enable your heart to perform more efficiently.

Regular aerobic exercise will also produce the following beneficial changes for you:

1. Your VO2 max will be greater, and you will be able to do greater amounts of physical work.
2. Any given level of work will feel much easier to perform, and you will be able to perform for a longer period of time.
3. You will notice a decrease in your heart rate and your breathing rate for the same amount of exercise.
4. Your coronary risk profile will improve: that is, you will likely have lower blood  lipid levels, lower blood pressure, and lower relative body fat, but a higher blood HDL cholesterol level.
5. Your body’s cells will be more responsive to the normal effects of insulin, handling  your blood sugar more efficiently.
6. You will feel and look better, producing a positive change in your attitude about yourself.

For example, the volume of blood that your heart pumps each times it beats will be greater, thereby decreasing number of beats needed per minute to pump a given amount of blood. The skeletal muscles in the arms and legs of a trained person use oxygen more efficiently and impose less demand on an already compromises heart for a given amount of work.

Exercise is now prescribed regularly for patients with coronary heart disease. Medically supervised programs that enroll patients two months after they have had a heart attack or coronary artery bypass surgery are widely available, and some programs even accepts patients within two weeks of hospital discharge.

Such persons under proper medical supervision can generally demonstrate the same type of cardiovascular conditioning as persons who have not had clinical evidence of coronary heart disease.

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Walking some becomes as automatic as seeing, hearing, or breathing and almost as important. Everyone wants to keep maximum mobility for a lifetime, and maximum mobility depends on healthy joints.

Fortunately, walking regularly or engaging in some other form of aerobic exercise offers you one of the best ways to keep your joints functioning well for many years. Even people who have osteoarthritis can improve the health and function of their joints by participating in appropriate exercise.

In fact, because the strong consensus about the multiple benefits of exercise for both the joints and general good health, recent guidelines emphasize gentle exercise. such as walking, as one of the key ways to improve joint health.

So even you have some pain or problems with your knees or hip, you can enjoy the benefits of walking or another low-impact aerobic activity. such as cycling or swimming, by taking a few extra precautions.

But wait, there  is more! Beyond helping your joints stay trouble free, walking and other forms of aerobic exercise also provide tremendous benefits for your overall health and fitness. Here are some of them:

-  It reduces the risk of heart disease. People who are regularly active throughout their lives cut their risk of heart disease in half. In other words, if you choose to be inactive, you double your risk of heart disease, as much as if you smoked a pack of cigarettes a day.

-  It improves total cholesterol levels and elevates levels of DHL.

-  It lowers the risk of high blood pressure and helps to lower and control exiting high blood pressure.

-  It reduces the risk of diabetes and improves the body’s handling of glucose in people with type 2 diabetes.

-  It improves bones health and reduces the risk of osteoporosis.

-  It enhances weight loss, helps to maintain a healthy weight, and helps to prevent loss of lean muscle during weigh loss.

-  It lowers the risk of certain cancers, such as breast cancer and colon cancer.

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