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Scientists Found a Way to Switch Off Cat and Pollen Allergies With Light

Tess Eidem and her team at the University of Colorado Boulder fill the lab’s air with tiny particles of cat dander, dust ...
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What exactly is the UV Index? A dermatologist explains.

🛍️ 100+ early Prime Day deals. Get shopping now. 🛍️ By Laura Baisas Published Sep 22, 2025 9:00 AM EDT CREDIT: DieterMeyrl via Getty Images. Get the Popular Science daily newsletter💡 Breakthroughs, ...