Usually, there are many reasons for white hair, but the most critical reason for black hair to become white hair is genetic and neuropsychiatric factors. So, will this adolescent white hair turn black? In fact, the treatment of any disease must find the cause, and the right medicine is the fundamental to cure white hair. In order to prevent white hair, we should always comb our hair. Traditional Chinese medicine believes that meridians are distributed all over the human body, and the internal and external parts of the human body, the interconnection of viscera and organs, and the reconciliation of qi and blood all depend on these meridians to play a conductive role. People's qi and blood reach the whole body through meridians, play its physiological role, nourish tissues and organs, resist external evils and defend the body. Baihui point on the head of a person is named because the meridians converge directly on the head or indirectly act on the head. For the question of whether white hair can turn black, which many people are concerned about in recent years, we should start from the root cause. It should be noted that combing hair in spring meets the requirements of physical fitness in spring, which can open yang, relieve stagnation, relax qi and blood, and of course, strengthen the body. Therefore, combing the hair can dredge the meridians and qi and blood, nourish and strengthen the hair, strengthen the brain and ears, dispel wind and improve eyesight, and prevent and treat headaches. It is reported that as early as the Sui Dynasty, the famous doctor Chao clearly pointed out that combing hair has the functions of dredging blood vessels, expelling wind and removing dampness, and making hair not white. Su Dongpo has a deep understanding of combing hair to promote sleep. He once said: comb your hair a hundred times, lie down and sleep until dawn. Comb a full head of hair, regardless of the middle or sides of the head, from the hairline of the forehead to the hair roots at the back of the neck. Each part must be combed at least 50 times to be effective, and the upper limit is based on your own comfort. Morning is the best time, because morning is the time when people's yang rises. Combs include horn comb, jade comb and wooden comb.