Washing your hair at night and not drying it sufficiently, the moisture will be retained in the scalp, long-term, it will lead to stagnant blood, meridians blocked. If in the winter, cold and damp, is more of the body of a major hidden trouble. Some people often sleep with wet hair at night, after a period of time, will feel the scalp localized numbness, accompanied by a vague headache; some people wash their hair the next morning will feel numb scalp, easy to catch a cold. Over the years, gradually will feel the top of the head obviously numb, accompanied by dizziness and headache.

So people who have the habit of washing their hair at night should try to change the habit of washing their hair at night, followed by drying their hair after washing, or using a hairdryer, to ensure that the cleanliness, relaxation, and health are not misplaced.