For thousands of years, physical activity has been associated with health. Today, science has confirmed the link, with overwhelming evidence that people who lead active lifestyles are less likely to die early, or to experience major illnesses such as heart disease, diabetes and colon cancer.

　　Exercise benefits every part of the body, including the mind. Exercising causes the body to produce endorphins, chemicals that lead a person to feel peaceful and happy. Exercise can help some people sleep better. It can also help with mental health issues such as mild depression and self-esteem. Plus, exercise can give people a real sense of accomplishment and pride at having achieved a certain goal - like beating an old time in the 100-meter dash. ﹒

　　Exercising can help you look better, too. People who exercise burn calories and look more toned than those who don't. In fact, exercise is one of the most important parts of keeping your body at a healthy weight. When you exercise, you burn food calories as fuel. If a person eats more calories than he or she burns, the body stores them away as fat. Exercise can help burn these stored calories.

　　Finally, exercising to maintain a healthy weight also decreases a person's risk of developing certain diseases, including type 2 diabetes and high blood pressure.

　　几千年来,体力活动与健康有关。今天,科学已经证实了链接,压倒性的证据表明,引导积极的生活方式的人不太可能早死,或经历重大疾病如心脏病、糖尿病、结肠癌。

　　锻炼的好处身体的每一部分,包括思想。锻炼使身体产生内啡肽,化学物质使人感到平静和快乐。锻炼可以帮助一些人睡得更好。它还可以帮助轻度抑郁和自尊等心理健康问题。另外,运动可以给人们一个真实的成就感和自豪感,在实现某个目标——比如击败老在100米短跑。摘要

　　锻炼可以帮助你更好看。人运动燃烧卡路里,看起来更健美的比那些不。事实上,锻炼是最重要的部分之一,将你的身体保持在一个健康的体重。当你运动时,你消耗的食物卡路里作为燃料。如果一个人吃的比他或她燃烧更多的卡路里,身体将它们存储脂肪。锻炼可以帮助消耗这些存储的热量。

　　最后,锻炼保持健康的体重也能减少一个人的患某种疾病的风险,包括2型糖尿病和高血压。