Physical weakness can be regulated by strengthening nutrition, exercising and getting enough sleep. If there are physical diseases, targeted treatment. 1. Strengthen nutrition: physical weakness does not exclude and intake of nutrients is insufficient. Usually pay attention to strengthen dietary nutrition, eat more protein, minerals and vitamins rich food, such as milk, eggs, fresh vegetables, fruits, beef, etc., can not pick food or partiality. 2. Exercise: In life, pay attention to strengthening exercise, such as insisting on running or swimming every day. Through the way of sports exercise can improve the physical condition, so as to improve the problem of physical weakness. 3. Maintain sufficient sleep: usually pay attention to the regulation of sleep, because lack of sleep is easy to produce the phenomenon of physical weakness. To develop the habit of going to bed early and getting up early to maintain a regular routine, if there is a sleep disorder problem, need to be treated according to the cause of the disease. If the weakness of the body is caused by disease, according to the cause of the disease and the severity of targeted treatment, to prevent the aggravation of the condition, do not blindly deal with their own.