Overnight gray hair is an exaggeration, but it is possible for a person to develop more gray hair in a short period of time.
Hair contains melanin, so the hair will appear black, but if a person is in extreme sadness, fear, tension and other bad emotions, there may be serious mental stress, may occur in a relatively short period of time hair pigment loss, resulting in the emergence of more gray hair.
The appearance of gray hair in people may also be related to a variety of factors. For example, in patients with vitiligo, in addition to the appearance of typical white patches of skin, if the scalp is involved, it can lead to the appearance of gray hair.
People appear more gray hair in a short time under the influence of bad mood, disease and other factors. When this situation occurs, it is recommended to regulate mood and actively treat the primary disease to alleviate the growth of white hair.