Two benefits to the human body by cycling1. Because the bicycle movement is the lateral dominant movement, it can improve the nervous system agility. The two legs alternate pedal can make the left and right brain function simultaneously develops, as well as can effectively prevent the brains premature senility and neglected.2. There is a significant regulatory role in cardiopulmonary function. Because the bicycle exercise can effectively exercise lower limbs muscle strength?and strengthens the body endurance. Also，the study showed that the eff