Coffee can inhibit dihydrotestosterone to a certain extent. Caffeine, as a stimulant, can inhibit the damaging effect of dihydrotestosterone on hair follicles and promote the growth of hair cells. According to Malaysia’s Guanghua Daily, a German study showed that caffeine can block chemicals that damage hair follicles. Professor Fischer of the University of Jena in Germany, who led the study, said: "Studies have shown that caffeine can effectively stimulate hair growth. However, it is also recommended that you do not drink a large amount. In addition, develop good work and rest and eating habits, and do not stay up late. It is important to do more outdoor exercise, relieve stress, and maintain a good attitude; eat more vegetables, kelp, black sesame seeds, fungus and other foods that are beneficial to hair growth, and eat less spicy and irritating foods, which will help. Hair growth. There is no harm in drinking coffee if you suffer from frequent hair loss. For women, coffee has a beauty effect and can make you look radiant. People with low blood pressure can make themselves better in high temperatures. During the process of brewing coffee, an antioxidant compound is also produced, which helps to fight cancer, anti-aging, and even prevent cardiovascular disease. It can promote metabolic function, activate digestive organs, and is very effective in treating constipation. . Hair loss occurs after staying up late. In recent years, due to some changes in people’s work and lifestyle, many people have to stay up late or have the habit of staying up late. Hair loss is also a common phenomenon. We need to do the following to treat it: 1. Try to get rid of the habit of staying up late. After all, staying up late can cause hair loss and cause serious damage to the body. In the long run, not only hair loss will occur, but other diseases will also occur. 2. Eat more fresh fruits and vegetables and pay attention to your diet. Nutritional combination, eat more high-protein, high-nutrition foods such as eggs, fish and shrimps. 3. Symptomatic treatment should be carried out according to the specific situation of hair loss. If the hairline is receding and the hair on the top of the head is sparse, consider this situation. For seborrheic alopecia, anti-androgen and hair growth treatments should be carried out according to seborrheic alopecia; if alopecia areata occurs, the hair falls out piece by piece. At this time, local sealing drugs should also be used on the skin lesions, combined with some hair growth potions, such as 5 % minoxidil tincture and other external applications. Only through the above comprehensive treatment can the hair loss situation be improved. Of course, the most important thing is to get rid of bad living habits such as staying up late.