隨著二十一世紀經濟持續的成長，生活步調不斷地加快，以致大多數人們早已忘卻生活中重要的部份－運動。運動對身體幫助之大，不論對心血管、呼吸系統、肌肉骨骼、免疫力、甚至帶給精神狀態的好處都不在話下。最近美國有心人士已體會到運動的不可或缺性，因此大力提倡運動健身的觀念，希望人民能從生活中著手，企求達成運動融入生活的境界。反觀國人對運動的看法與需求則遠不如國外，近來國內籠罩在嚴重急性呼吸道症候群的陰影下，使得國內也開始注意到運動的重要性，藉由鼓舞國人每週運動三天、每次運動三十分鐘、心跳在130/min以上，進而讓身體維持最佳狀況、提升免疫力，一同對抗SARS。本文有感而發，希望藉由實證資料的收集與整理，探討並強化運動對身心健康的觀念，提供給臨床實務與衛政單位參考 。

　　　　　Life in the 21 century is conducted at an enormously fast and sustained pace. As a result, many do not have time for regular exercise. The benefits obtained through exercise-both physiological and psychological-cannot be overemphasized. Indeed, regular physical activity improves the cardiovascular system, respiratory capacity, muscle-skeletal system, immune function, and psychological well being. In recent years, healthcare professionals in the United States, alarmed at the growing number of people living sedentary lifestyles, began excise promotion campaigns, hoping to encourage Americans to live healthier and more active lives. Likewise, Taiwanese people have never taken exercise seriously, nor do the enjoy it. It was not until the recent severe acute respiratory syndome (SARS) outbreak that the Taiwanese goverment was alerted to the importance of exercise, and it is now encouraging people to exercise 30 minutes per day, 3 days per week, at heart rates of more than 130 bpm to boost general physical health and immune function. In this article, we conducted a systematic review of evidenced-based studies, and provide recommendations for clinical practice, and government health agencies.