Hair is getting thinner and thinner, usually due to the hair follicles not absorbing nutrients for a long time. Diet also has an effect on hair health, but it is only one of the influencing factors, such as lack of vitamins and trace elements can also appear increasingly thin hair. You can eat more food containing iron, calcium, zinc, vitamin A and protein. The genetic cause is not because of viral infection, but because of the genetic constitution, the body’s hormone secretion is too strong, the secretion of dihydrotestosterone affects the growth of hair follicles. There are also staying up late, irregular lifestyle, mental stress and long-term frequent perm, dyeing hair, unreasonable shampoo, alkaline shampoo are prone to cause hair more and more fine. It is recommended not to stay up late, to get enough sleep, to stay emotionally optimistic, to avoid excessive shampooing and perming, and it is best to choose a mild, less stimulating shampoo.