Exercise is necessary for good health. Exercise can protect you from sickness, when you strong you have immunity, it is strong too. The disease can’t make you have sick. If you don’t have exercise, nor have you enough sleep. You can sick, for your immunity is weak. Secound, Exercise is expel insomnia, it is a broken sleep. Sleeping is very important because it is good the way of relax. If you don’t sleep, you are easy to tired and ill. Exercise make you deep sleep and fresh of wake up in the morning. You can have good health if you are Exercise.