There is no such thing as not being able to sunbathe in Chinese medicine, but care should be taken to avoid prolonged sun exposure, and direct sunlight should be avoided as much as possible, and proper shading can be carried out to avoid burning the skin or eyes with too strong sunlight. In addition, daily sun exposure should be appropriate according to their own situation, and according to the weather, the season and other factors to choose the appropriate length of time. For children, proper sun exposure can help promote the production of vitamin D, reducing the likelihood of rickets and chondromalacia. It can also promote the conversion of histidine, produce uronic acid, increase the level of glutamate in the brain, thus promoting the central nervous excitability, which has a certain auxiliary effect on children’s intelligence, learning ability and memory improvement. For the elderly, the benefits of proper sun exposure are that it helps promote the body’s absorption of calcium and phosphorus, reducing the likelihood of bone mineralization and osteoporosis, and the large amount of uronic acid produced after sun exposure has a supporting effect on delaying mental decline in the elderly. In addition, the infrared heat effect can occur when sunbathing, which helps accelerate blood circulation, and ultraviolet light helps melanin oxidation, which in turn promotes thyroxine, adrenaline and other hormone secretion, and has a certain alleviating effect on depression and other bad moods. And the sun’s medium-wave ultraviolet light has a certain auxiliary effect on the treatment of eczema, atopic dermatitis, psoriasis and other skin diseases.