Health care should pay attention to scientific exercise. The best time for exercise is at night, usually at 5-7 o'clock, which is the exciting period of people. Exercise too late to fall asleep easily. You can use dynamic running, gym exercise and static yoga. Pay attention to a healthy diet, quit smoking and drinking, and keep a good mood. According to foreign research, singing is the activity that ranks first in longevity. The diet is mainly vegetarian, supplemented by meat and fruit. Eating more miscellaneous grains is good for your health.