Your body repairs itself and recovers while you sleep, and that leads to list of benefits for your looks.
Skin makes new collagen when you sleep, which prevents sagging. Sleep deprivation causes a decrease in blood flow to the skin surrounding your face. Lack of sleep leaves skin drier, which make lines more visible.
Hair follicles also gain nutrition from blood flow. Since blood flow decreases when we’re short on sleep, hair gets less food, it weakens.
Lack of sleep increases hunger and appetite. It also stimulates cravings for high-fat, high-carbohydrate foods. Good sleep keeps your metabolism stay steady which helps in weight management.