Skin is the body to resist against the outside world the first line of defense, and the sun on the skin, useful harmful, it is entirely up to you how to make use of the sun may be living in low-light environments, appears to be a bad complexion, the most To do good, “sun”, the skin will absorb the sun in the human body in the formation of vitamin D, the development of the skeleton go a long way. In the hot sun and is divided into two kinds of ultraviolet light, the so-called hotline will be feeling the body heat; and ultraviolet skin damage is the most light, its harm to the skin at 4 stages: namely, tanning, sunburn, wrinkles have And cause skin cancer. UV also can be divided into A, B, C of the three, the longest wavelength ultraviolet A, is one of the most skin damage; ultraviolet B is the main reason for black skin: ultraviolet C of the shortest wavelength on the skin than harm Small.
Remember: UV there all the time, would like to deal with the pervasive ultraviolet only do a good job in their own preventive measures.
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