Factors harmful to our skin according to Dr Christophe Desouches Cosmetic surgeon in Marseille
You probably know the definition of the genome but have you ever heard of the exposome? It corresponds to all the environmental factors responsible for 80 % signs of aging.
On the one hand, we have the genetic heritage. On the other hand, the usual environmental factors: UV, pollution, tobacco but also food, stress, sleep. This tells us that 80 % signs of aging are not genetic but linked to these external influences. The exposome therefore takes into account all the internal and external exposures to which the skin is subjected.
We already know that the skin is impacted by various intrinsic and extrinsic factors. What new elements does this notion of exposome bring?
Until now, factors such as UVA, UVB, tobacco, infrared, diet and stress were studied separately. Today, scientists are trying to understand the interactions that exist between them, the cumulative damage to the skin.
The approach is more comprehensive. We know, moreover, that each individual has his own exposome, which varies according to the way of life, the place where one lives, the season ... But each also has his own genetic heritage which allows him to fight more or less effectively against the deleterious factors of the exposome!