What is the cause of aging

Skin aging points intrinsic factors and external factors, intrinsic factors are also known as natural aging and age, with the growth of age, collagen fiber synthesis reduced, elastic fiber elasticity reduced will cause some skin aging, manifested as skin relaxation, dryness, fine lines and so on. External aging causes, such as photoaging and mood with drinking and smoking and moisturizing factors are not in place, for example, sometimes a long time in the sun, will cause skin relaxation, wrinkles and so on, if mood will also affect the skin that is skin diseases, such as our mood and many diseases, acne, psoriasis, white fever and so on are related to mood. External aging is mainly manifested in the relaxation of the skin, wrinkles, deep wrinkles and telangiectasia spots after these factors act.