Scientific hair care 1, combing and washing hair: combing hair is best to use a wooden comb or horn comb, you can also massage the scalp while combing to enhance the blood supply to the hair root and hair nutrition. Shampoo to 4-7 times a week is appropriate, do not use too hot water shampoo, shampoo supplies should be used high-quality shampoo (water), you can wash while massaging, after washing with a thick towel pat hair, the remaining moisture will be absorbed, it is best to let the hair dry naturally. 2, in addition to a sense of depression: the deeper the mental depression, hair loss, gray hair will be faster, the normal life should be regular, to maintain adequate rest and sleep, a happy mood can eliminate mental tension, to prevent early white hair early off. 3, pay attention to ventilation: hair does not tolerate stifling heat, wear hats, helmets will make the hair long time not breathable, easy to smother the hair, especially at the hairline by the pores of the hat or helmet pressure muscle easy to relax, causing hair loss, so pay attention to the hat, helmets and other ventilation.