Comb your hair frequently \x0d\ Comb your hair every morning, noon and evening. You can massage your scalp while combing your hair to enhance the blood supply of your hair roots and the nutrition of your hair. You don't need a metal or plastic comb to comb your hair. It is best to use a wooden comb or a horn comb. Don't comb your hair when it is wet, so as not to damage it. \x0d\ Wash your hair often \x0d\ Washing your hair can remove dust and stop itching, which is beneficial to the breathing of the head skin. It is advisable to wash your hair 4-7 times a week, and the water temperature should not be too hot, preferably warm water of about 38 degrees Celsius. \x0d\ Reasonable diet \x0d\ Hair loss and gray hair are caused by insufficient supply of qi and blood in viscera, so we should strengthen physical exercise at ordinary times and eat more foods rich in iron, calcium and vitamin A, as well as nutritious foods, such as fish, lean meat, milk and poultry with high protein content. Patients who have suffered from massive hemorrhage should be given qi and blood in time under the guidance of a doctor, so as to avoid baldness and premature gray hair due to insufficient qi and blood and lack of nutrition. \x0d\ Eliminating depression \x0d\ Mental state has a lot to do with baldness and premature gray hair. If you are depressed for a long time, hair loss and gray hair will be faster. "White hair and three thousands of feet, like a long beard." You should have a regular life and keep enough rest and sleep. A happy mood can eliminate mental tension and prevent premature gray hair loss.