A tanned skin is attractive, but before an aesthetic response, the darkening is due to a measure of protection against ultraviolet rays. Excess can have severe consequences.
Sun and health go hand in hand, so it will always be a bit strange to wonder if it is risky to tan during pregnancy. It will be if it becomes an activity that we do in excess, without knowing the scope and its limits.
Short-wave (UVB) and long-wave (UVA) ultraviolet rays have effects on the skin depending on their intensity and length. In this sense, we know that the skin under the action of UVB rays produces vitamin D3, essential for bone structure. But it only takes 20 to 30 minutes of sun exposure to achieve your benefit.
Tanning requires more time and care. And if doing it in the sun involves risks and requires a maximum of caution, in tanning beds it is completely ruled out. In this article we present the why.
Why do we get a tan?
Tanning is a reaction of the skin to protect itself from the action of short-wave ultraviolet rays or UVB. This radiation is intercepted by the ozone layer, but the climate crisis has affected it and the incidence of these rays on the earth’s surface has increased.
The skin captures them and the natural response, when they pass through the epidermis, is darkening, a product of melanin. This is a biopolymer produced by melanocytes, which are found in the deepest layer of the epidermis (or stratum basalis).
Melanin, which absorbs up to 99% of the sun’s rays, is deposited in keratinocytes, the cells that make up the skin. It is here that it accumulates around the nucleus of the cell to protect DNA from possible mutations caused by solar radiation.
Extending the time of exposure to the sun is to overcome this natural barrier and move from the attractive tan to the sunburn.
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