Regular exercise helps you live longer, study says

This is a great reason to work out. You will live longer. Who does not want that?
You end up looking great, feel stronger, stay healthy and you live longer.
Sorry, couch potatoes -- the verdict is in: People who exercise regularly really do live longer.
In fact, people who get a good workout almost daily can add nearly four years to their lives, according to the first study to quantify the impact of physical activity this way.

Source: San Francisco Chronicle