Hair loss has many reasons, and living habits, mental state, disease and other factors are related to the specific causes vary from person to person. 1. Lifestyle habits: some people stay up late for a long time, lack of sleep leads to hormone level disorders in the body, there may be a serious case of hair loss; in addition, if you often dyeing and perming, causing damage to the hair follicles and hair quality, there may also be more hair loss. 2. Mental state: some people with long-term mental stress, anxiety, depression, etc. can also cause hormone level disorders in the body, resulting in increased hair loss. 3. Diseases: some diseases such as malnutrition, baldness, seborrheic alopecia, etc., can lead to increased hair loss, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor standardized treatment. Normal people lose about 70 to 100 hairs per day. If more than 100 or even more, it is recommended to go to the hospital in time, to clarify the cause of the disease, and then follow the doctor’s instructions to standardize the treatment.