Short Wave Folgen

On Tuesday, the Centers for Disease Control and Prevention changed its guidance on wearing masks. Short Wave co-host Maddie Sofia and NPR health correspondent Allison Aubrey explain what's changed and why. Plus, the latest on the Delta variant, a highly transmissible strain of the coronavirus. Want to see how widespread COVID-19 is in your local community? Check out this data tracker from NPR. Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Fire has always been part of California's landscape. But long before the vast blazes of recent years, Native American tribes held controlled burns that cleared out underbrush, encouraged new plant growth, and helped manage wildfires. It's a tradition that disappeared with the arrival of Western settlers. NPR climate correspondent Lauren Sommer explains how tribal leaders are trying to restore the practice by partnering up with state officials who are starting to see cultural burns as a way to help bring extreme wildfires under control. (Encore episode)Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Sweating is critical to helping humans avoid overheating, and it's different than how most animals cool down. Sarah Everts wanted to understand more about how humans came to sweat like we do, and wrote a book called The Joy of Sweat - which she talked about with Rhitu for this episode.Email the show at shortwave@npr.org.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy