White hair is caused by the decrease of melanin particles or air filling in the medulla and cortex of hair. Under normal circumstances, there are abundant blood vessels in dermal papilla, which provide sufficient nutrition for dermal papilla and hair bulb, and melanin particles are successfully synthesized. When the formation of melanin particles in papilla and hair bulb is hindered, or melanin particles in medulla and cortex of hair cannot be transported to hair due to some factors, white hair will appear.

Pay attention to self-regulation, adjust mood and sleep, try to keep a happy mood, don't be overtired, and pay more attention to rest. Insist on physical exercise and enhance physical fitness.

Pay attention to the quality of diet and eat more foods rich in high-quality protein, trace elements and vitamins, such as fresh fish, milk, animal liver and kidney, black sesame, edible fungi, laver, fresh vegetables and fruits.

According to research, white hair is closely related to excessive mental stress, so keeping a good attitude and not giving yourself too much pressure will help improve white hair.