The human body has a good plasticity, sunrise and sunset, so through a day of work, rest at night, most people can restore the energetic state, but when the body is very weak, you must go to find the cause. First, we must analyze whether it is too strenuous recently, or there are many other things that may not be physical strain but brain power, but also fatigue feeling. The above situation, the easiest way is to relax and relieve through rest, as students to winter break, summer vacation, in fact, not only the heat of the day problem, but to study for a period of time to rest. National Day holiday or May Day holiday or work for 5 days, rest 2 days, are in let everyone appropriate rest. When the fatigue does not ease when resting, you should go to the hospital to do a comprehensive examination to rule out problems, and sometimes beware of physical fatigue when there are no accompanying symptoms, such as the recent sudden weight loss very quickly, to draw attention to the fact that you may have to do tumor index examination to rule out organic changes. Targeted measures will not cause great harm to health.