Why do young people have long hair?

1. Mental factors: Because young people live and work under great pressure or work for a long time, the brain is in a state of tension for a long time, and the spirit also becomes excessively tense, so white hair appears on the head. 2. Malnutrition: Young people often do not eat on time, coupled with eating instant noodles and other non-nutritious foods, resulting in insufficient nutrition intake by the body, unable to supply sufficient nutrition to hair follicles, resulting in white hair. 3. Genetic factors: If someone in the family has long white hair, it will be passed on to the next generation. 4. Chronic diseases: Young people suffering from tuberculosis, chronic colitis and other diseases, will also make the body lack of nutrition long white hair.