The sun and the skin are a double-edged love story. Sometimes its rays are beneficial to us, sometimes they ruin the youthfulness of our skin. What are the effects of the sun on the skin? How to prevent them
What are the positive effects of the sun?
Tanning, the trendy good-looking effect.
It is one of the most appreciated effects of the sun on the skin: having a pretty golden tan, as soon as the weather arrives . It is the melanocytes which are at the origin of this pigmentation: stimulated by the rays of the sun, these cells increase their production of melanin , the brown pigment which absorbs UVB and darkens the complexion.
The higher the amount of melanin in the skin, the more you are tanned and the more your skin is “armed” to protect itself from solar radiation. Because yes, tanning is nothing other than a defense reaction of the skin against UV rays!
Vitamin D synthesis.
Absorbed in reasonable quantities by the epidermis, the sun’s rays encourage the synthesis of vitamin D. It is involved in the fixing of phosphorus and calcium on the bones, and therefore plays a key role in the growth and robustness of the skeleton . A deficiency leads to a risk of rickets or bone demineralization. Note that the body’s ability to produce vitamin D decreases with age and the pigmentation of the skin.
What are the negative effects of the sun on the skin?
You must have known this: when you come back from the beach or a stroll in the sun, your skin is abnormally red. In short, you got a sunburn, which is far from being as nice as the one sung by Richard Cocciante. It is one of the fastest and most visible effects of the sun on the skin: the cells of the epidermis have been literally destroyed by UVB . Often painful, these erythemas can leave indelible marks and go as far as hospitalization. Hence the importance of properly preparing your skin for the sun !