Thus, since the sun's UV rays can reach us even when we are in the shade, it is important to protect our skin under these conditions. Indeed, UV rays can cause irreversible damage. They generate free radicals in our body that can alter cell membranes, but also induce changes in the genetic code, which can lead to mutations or even the proliferation of cancerous cells.
Finally, free radicals can also denature certain proteins essential to the skin. Penetrating to the dermis, UVA rays stimulate the aging of the skin and promote the appearance of wrinkles, fine lines, and pigmented spots. UVB rays, on the other hand, cause skin burns, such as sunburns or more serious conditions (skin cancers).
Therefore, it is crucial to protect oneself from UV rays by applying a broad-spectrum sunscreen daily to the areas of the face and body that are exposed. Also, consider wearing sunglasses and a hat, as UV rays are also harmful to the hair and scalp. Lastly, if you use loose clothing for protection, remember to check their UPF rating (UV Protection Factor), which measures their ability to block UV rays. For instance, a UPF rating of 25 means that the fabric only allows about 1/25 of UVA and UVB radiation to pass through.