1) can be conditioned by traditional Chinese medicine to turn white hair into black hair. When cooking soup at home, you can put some Chinese herbal medicines, such as Fructus Corni, Polygoni Multiflori Radix, Radix Rehmanniae Preparata, Walnut, Ganoderma lucidum, Fructus Lycii, Fructus Ligustri Lucidi, Ruby, Radix Asparagi, Rhizoma Polygonati and Radix Angelicae Sinensis, or soak Semen Sesami Niger or Polygoni Multiflori Radix in water. Polygonum multiflorum Thunb. is 20-30g per day. If it is hot and dry, angelica is generally not used. Soaking chrysanthemum tea and eating walnuts at ordinary times can clear the liver and improve eyesight, which is good for turning white hair black. 2) Relaxation is very important. If you are too nervous and anxious for a certain period of time, it will lead to an increase in the release of catecholamine in the brain and a decrease in tyrosinase activity, thus affecting the metabolism of melanin and reducing the synthesis of melanin in hair. 3) Don't sleep with your head wet to prevent premature gray hair. 4) Reasonable washing is very important. Wash your hair regularly, usually 1~2 times a week, and increase the number in summer. Water should be soft water with less minerals and no irritation to hair, and the water temperature should be close to body temperature. After washing your hair, wet hair can't sleep well, and it is easy to catch cold, which leads to early gray hair. 5) Be well protected when walking in the sun. Avoid strong sunlight or dry and windy hair degeneration. The ultraviolet intensity of the sun in Guangdong is strong, and it is strongest from 10 to 4 pm, as well as in autumn and winter. Ultraviolet rays will destroy the chemical structure in hair, destroy the elasticity of hair, and make hair dry and fade. Don't let your hair bask in the sun too much, especially in the dry season of autumn and winter, pay attention to the moisturizing of your head. Anti-ultraviolet hair care products will have a certain effect. 6) Eat foods rich in protein and vitamins, such as milk, eggs, lean meat, fish, beans, seafood, fresh vegetables and fruits. Medicinal materials and foods that can be used as dietotherapy are: black sesame, mulberry, Polygonum Multiflori Radix, Ligustrum lucidum, Lycium barbarum, Chinese yam, jujube, black beans, chrysanthemum, lean meat, carrots, spinach, animal liver, etc., all of which are good nutritional drugs and foods for hair. 7) Vitamin A is beneficial to maintain the normal function and perfect structure of epithelial tissue and prevent hair from turning white. You can often eat foods rich in vitamin A, such as carrots, spinach, rape, leeks, celery, apricots and so on. 8) Seaweed rich in iodine is very beneficial to hair, so add some oil when eating to help absorb iodine. 9) Wash black beans, steam them repeatedly, and keep them in porcelain bottles. Take 6 grams twice a day, and take it with light salt water after chewing. At the same time, eating 1 egg and 2 walnuts every day will be effective. 10) Take 12 large walnuts, peel off the film of the shell and meat coat, fry and chop the walnut kernels for later use, and take 60g of Lycium barbarum and Polygonum multiflorum, and 240g of red beans or black beans. 1 1) Fermenting and scrubbing method of glutinous rice swill, which drains the swill filtered by rice washing, stores it for 3 days, rubs the hair after fermentation turns sour, and then washes it once a day 1 time. Long-term use can blacken white hair, and has the effects of moistening hair and making hair black and shiny. 12) soybean frying: use rice vinegar and soybeans, boil the beans with rice vinegar, take out the beans and cook them thick, coat your hair and blacken your beard and hair.

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