摘要

原文摘要：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, dizzy, nauseous, and generally unwell, symptoms consistent with heat exhaustion. Around the same time, I received a notification from an app used by the $249 ($149 at the time of publication) UV-tracking necklace I'd been wearing, called Gem, from a company called The90. It warned that my UV exposure had climbed considerably. It turns out UV radiatio … Read the full story at The Verge.

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<img alt="A close-up of the 90 Gem UV-tracking pendant around someone&#039;s neck." data-caption="" data-portal-copyright="Photo: Sheena Vasani / The Verge" data-has-syndication-rights="1" src="https://platform.theverge.com/wp-content/uploads/sites/2/2026/10/268829_The90_Gem_SVasani_0002.jpg?quality=90&#038;strip=all&#038;crop=0,0,100,100" />
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<p class="has-drop-cap wp-block-paragraph">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, dizzy, nauseous, and generally unwell, symptoms consistent with heat exhaustion.</p>
<p class="wp-block-paragraph">Around the same time, I received a notification from an app used by the $249 ($149 at the time of publication) UV-tracking necklace I'd been wearing, called <a href="https://shop.the90.com/products/the90-gem">Gem</a>, from a company called The90. It warned that my UV exposure had climbed considerably. It turns out UV radiatio …</p>
<p><a href="https://www.theverge.com/tech/1023230/the90-gem-necklace-hands-on-impressions">Read the full story at The Verge.</a></p>