Turning gray hair into black hair needs to be treated according to the cause of the patient’s gray hair, which may be physiological or pathological. Physiological gray hair can be adjusted through diet, exercise, sleep and other ways to improve gray hair, pathological gray hair need to timely medical treatment, symptomatic treatment, common is drug treatment. 1. Physiological factors: (1) Adjusting diet: If gray hair is caused by old age, it can be helped by eating more fresh fruits and vegetables, as well as eating black beans and black sesame in moderation, which can nourish the kidney qi, and try not to eat oily, spicy and stimulating foods, which can help to produce black hair. (2) Exercise: want to make gray hair into black hair can also be through exercise to improve the metabolism, improve their own immunity, which can properly help the growth of black hair. (3) increase sleep time: want to make gray hair into black hair, you can also increase the sleep time, try not to stay up all night, to ensure that the body’s blood circulation is smooth, is also able to improve the occurrence of gray hair, promote the growth of black hair. 2. Pathological factors: Vitiligo caused by white hair: if the patient appears white hair is caused by vitiligo, need patients to go to the hospital in time for treatment, first of all, under the guidance of the doctor oral glucocorticoid hormones, such as prednisone, etc., and topical tacrolimus ointment treatment, and secondly, then take the laser or implantation of hair to carry out the treatment. Gray hair, should go to the hospital in time to check, clear the cause of the disease, under the guidance of the doctor symptomatic treatment, so as not to delay the treatment.