The UV-tracking Gem made me rethink how sunlight affects my health, not just my appearance
Image: The Verge
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- With temperatures rising to the 90s in Los Angeles, avoiding the heat wasn't exactly an option while I was at a relative's outdoor party in August. So I sat beneath a patio umbrella with a powerful fan nearby, figuring I was protected from the sun and heat. Half an hour later, I felt exhausted,…