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There are certain benefits:

Health care: the health effects of ultraviolet light on the human body. After irradiating the human body with the ultraviolet wave of 280-320 nm wavelength, it can cause the photochemical process and photoelectric reaction of the skin body, so that the skin produces many active substances, thereby playing a role of health care. At present, ultraviolet radiation is used to regulate the function of advanced nerves, improve sleep, and lower blood pressure. Frequent exposure to ultraviolet light can enhance the phagocytic capacity of white blood cells and enhance human immune function.

Black spot effect: Ultraviolet rays in this band can strongly stimulate the skin, accelerate skin metabolism, strengthen skin growth and thicken the skin. A-wave ultraviolet light is an important band for treating skin diseases, such as psoriasis and vitiligo.

Benefits: Ultraviolet rays can sterilize through the air, and the ability of sunlight to sterilize is based on ultraviolet rays. Although ultraviolet light has a bactericidal effect, its penetration into glass is very poor. A layer of two millimeters of glass is enough to block 80% of the ultraviolet rays; if it is two layers of glass, the ultraviolet rays are completely blocked. Therefore, if you sunbathe in the house in winter or early spring, think that this can also be sterilized, then it is wrong. Whether it is a cold winter or a hot summer, you should stick to the sun outdoors. This will not only exercise the body, but also prevent various popular infectious diseases. Ultraviolet light in the sun can increase the tension of the central nervous system and enhance the function of various organs throughout the body. The sunny days after a long rain, the sunrise in the early winter, makes people feel comfortable and energetic. This is due to the stimulation of ultraviolet rays, which enhances the nervous system.