The Importance of physical exercise!!!!!

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Everyone hopes to live happily in the world.Physical exercise is indispensable to a happy life.There is a famous saying:"life lies on exercise." Although you will not necessarily die without regular physical exercises,they'll certainly help you live longer and more healthily. Exercise is good for us to build our bodies.It helps coordinate the different parts of our bodies when we have sports.For example,we must try our best to coordinate the movements fo the arms and legs when we play basetball,or we won't be able to shoot the basket.Exercise also benefits our organs.It lets the heart beat faster than usual,and then helps enlarge the blood vessels to protect us from heart attacks. What;s more,exercise will help you get rid of your inertia.If you keep doing exercise regularly,you will never be a lazy person.therefore,exercise has great effect on one's character. In a word,exercise is helpful,important.