This is the conclusion reached by researchers from King’s College London, whose article published in Journal of Investigative Dermatology.
Scientists have analyzed a large array of data on two and a half thousand British twins, including genetic information and information about their habitual behavior. It turned out that both identical twins were much more likely than non-identical twins to behave the same in terms of their love of tanning – they adored “roasting” in the sun or regularly visiting a solarium. This suggests that this behavior is based on a genetic predisposition.
Further analysis of data on the genetics and behavior of more than 260,000 people of European descent allowed researchers to identify five key genes responsible for addiction to beaches and tanning beds.
It turned out that the same genes, the activity of which is manifested in the brain, are associated with a tendency to develop various addictions (smoking, alcoholism, drug addiction), as well as a predisposition to risky behavior, for example, to a large number of sexual partners and fast driving.
The finding suggests that coping with excess sun exposure and tanning beds may be more challenging than anticipated, since these risk behaviors are fueled by genetic factors, the researchers note.
“We constantly see people who are ready to lie in the sun for hours, although they are well aware of all the dangers associated with this. They continue to tan even if they know they are at high risk for skin cancer. Now we understand that such persistence in addiction to the sun can be in the genes “, – explained one of the authors of the study, dermatologist Veronique Bataille (Veronique Bataille).
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