Because of the elderly metabolism, stress, repair ability is poor caused. Older people’s blood vessels, lymphatic vessels, muscles, fascia and other tissue hardening, fragile, often heavier than young people after the injury; older people in the event of trauma reaction, self-protection ability is poor, the same trauma older people are often much heavier injury, while the pain and other sensations are also poor, can not correctly and timely expression of the feeling of injury, easy to cause children and doctors misjudgment; because the elderly systemic metabolic ability is low or also accompanied by Because of the lower metabolic capacity of the whole body or other diseases, the recovery after injury is much slower than that of young people, and various complications, comorbidities and sequelae are likely to occur. Care for the elderly is a matter of concern for the whole society, and the usual diversified diet, appropriate amount of activities and a happy attitude are necessary for the elderly.