Gray hair can be caused by a variety of factors and needs to be treated according to the cause, not simply by eating something to recover. Gray hair is mainly due to the reduction of melanin production, physiological factors, mental factors, disease factors may cause. Physiological factors such as gray hair in the elderly, belong to the aging process, irreversible, usually no effective treatment. Mental factors such as severe mood swings, anxiety, sadness, etc., can lead to rapid graying of the hair, usually need to be adjusted mentally, to remove the bad mental psychology, gray hair can be gradually restored. Disease factors such as vitiligo, white spots, hair white and other symptoms, you can take glucocorticosteroids such as prednisone, betamethasone, etc., the specific use of drugs need to follow the doctor’s instructions. The above are some of the causes of gray hair and measures to deal with, it is recommended to consult a doctor in a timely manner, diagnosed by the doctor to give treatment.