Drinking milk at night can effectively help sleep and improve insomnia. Milk can soothe the nerves, nourish the brain and relieve tense nerves. In addition to the help of sleep, milk can also beautify and whiten skin. The division of human skin cells is usually carried out at night. Drinking milk before going to bed can not only help sleep, but also supplement enough nutrients to the skin, which is conducive to the regeneration of new cells in the skin. If you persist, your skin will become very shiny, white and tender.