Yellowish and dry hair may be caused by malnutrition or the influence of living conditions, which can be solved by strengthening nutrition and improving living conditions. 1. Strengthen nutrition: daily diet should pay attention to more intake of food containing a variety of vitamins, such as sesame seeds, black beans, peanuts, etc., to supplement the body’s need for a variety of micronutrients. 2. Improve living conditions: frequent exposure to the sun, irregular work and rest, mental stress, etc. may lead to yellow and dry hair. Therefore, when you go out to labor can choose sun hat umbrella and other physical sunscreen to avoid direct sunlight; develop a good work and rest habits early to bed and early to rise, adjust their own mentality, do not worry too much about certain things; every time you wash your hair, you can choose to hair care oil properly coated in the tips of the hair, massaged until absorbed. Hair yellowing and drying may also be caused by other diseases, such as accompanied by other physical symptoms, it is recommended to seek medical help in a timely manner.