Regular sun exposure is good for your health, and it is generally recommended that you sunbathe for about an hour a day. Regular sun exposure can allow the body to produce a relatively rich vitamin D, promote the body for the absorption of calcium ions, can prevent osteoporosis, but also to enhance the body’s immunity. And appropriate sun exposure can make the pigment produced by subcutaneous pigment cells increase, so that the skin color is more healthy, enhance the resistance of the skin, thereby reducing the probability of skin diseases. However, it is not recommended to sunbathe for too long or sunbathe when the sun is strong, so as not to stimulate the skin with a large amount of ultraviolet radiation triggering sunburn, peeling, erythema, itching, burning and other symptoms, and at the same time, attention should be paid to avoid direct sunlight on the face and eyes. In addition, it is recommended to apply some sunscreen on the exposed parts of the sun, which not only protects the skin, but also does not affect the absorption of calcium ions.