Sleep is for health, but sleep time should be moderate, and you can't sleep too much. Usually adults sleep for about 7 to 8 hours. It is recommended to go to bed before 10:00 at night, instead of staying up late. Staying up late will affect the body's immunity and lead to low resistance. Staying up late for a long time can also easily lead to skin aging. Lycium barbarum can be soaked in water and has the effect of nourishing yin and tonifying kidney.