Israelis increasingly use UV index hack for 'instant tan,' ignoring cancer risks

A concerning trend is emerging in Israel where the UV index, designed as a public safety tool, is being repurposed by young people as a guide for achieving the "best tan." Despite high UV index readings, often exceeding 10 and signaling very high risk, individuals like 16-year-old Abigail Wolf are deliberately seeking sun exposure during peak hours.

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People say, you shouldn’t go out when it’s a 10 or 11. But when I see a 10 or an 11 on the index, that’s when I go out for about 40 minutes to get a better tan.

Wolf stated that when the UV index reaches 10 or 11, she goes out for about 40 minutes to tan, a practice directly contradicting the Israel Meteorological Service's warnings to avoid direct sun. Scientists developed the UV Index in 1992 to help the public minimize the risks associated with UV radiation, which can cause sunburn, tissue damage, and skin cancer. However, the index has gone viral on social media, particularly among young adults and teens, who use it as a benchmark for optimal tanning conditions.

Dr. Efrat Bar-Ilan, a senior pediatric dermatologist at Clalit Health Services, observes this trend with alarm. She notes that in the past two years, young individuals check the index and then deliberately expose themselves to the sun when it is nine or above. "They know UV radiation is bad, but they cannot comprehend the long-term risk to their health. They just want the instant tan, the instant glow. Everyone wants to be tan," she explained.

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In the past two years, I see a very concerning trend among young adults and teens who check the index and then go out in the sun when the index is nine or above.

Bar-Ilan elaborated on the biological process, explaining that UV radiation triggers melanocytes to produce melanin, the pigment responsible for tanning. While UVA rays cause tanning by darkening existing pigment, UVB rays penetrate the upper skin layers, causing sunburn and damaging cellular DNA. The long-term effects of accumulated sun exposure, beyond immediate sunburn, include premature aging, wrinkles, reduced skin quality and elasticity, and pigmentation issues, ultimately leading to skin cancer, a fact she stressed is "proven" and "not something that we can negotiate."

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They know UV radiation is bad, but they cannot comprehend the long-term risk to their health. They just want the instant tan, the instant glow. Everyone wants to be tan.

Despite these warnings, many young people remain unconcerned about future health consequences. Bar-Ilan shared that parents often bring their children to her hoping she can dissuade them from tanning, but the teenagers often dismiss concerns about their health in their 60s and 70s. This disconnect between immediate desire for a tan and the severe, long-term health risks highlights a significant public health challenge.

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It will cause cancer. This is proven. It’s not something that we can negotiate.