8-5.Cause of wrinkle:Stress
	The extreme stress negatively affects the skin. It is said that wrinkles will increase as early as nervous people who always get irritated. The active oxygen is generated by the stress in the inside of the body. The active oxygen that can be done too much damages the body though the active oxygen defends bodying from mold and the virus, etc. that invade from the outside. The active oxygen that unstably oxidizes the material oxidizes the lipid of the skin, and causes the dryness of the skin. To cancel the stress, let's move the body by the hobby and sports.