By — William Brangham William Brangham By — Claire Mufson Claire Mufson By — Madison Staten Madison Staten By — Satvi Sunkara Satvi Sunkara By — Juliet Fuisz Juliet Fuisz By — Alexa Gold Alexa Gold By — Zoie Lambert Zoie Lambert Leave your feedback Share Copy URL https://www.pbs.org/newshour/video/horizons/2026/01/how-pfas-harm-our-health-and-why-theyre-everywhere Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Story What do non-stick pans, firefighting foam and many of our couches, carpets and cosmetics have in common? They're all made with PFAS. The so-called forever chemicals helped spur innovation, but they're also insidious to human health. Horizons moderator William Brangham explores these chemicals and how we can protect ourselves with investigative journalist Mariah Blake and scientist Laurel Schaider. By — William Brangham William Brangham William Brangham is an award-winning correspondent, producer, and substitute anchor for the PBS News Hour. He also serves as the host of Horizons from PBS News. @WmBrangham By — Claire Mufson Claire Mufson Claire Mufson is a journalist and general assignment producer at PBS News Weekend. She produces stories on a wide range of topics including breaking news, health care, culture, disability and the environment. Before joining PBS News, she worked in Paris for French public broadcasting channel France 24 and for The New York Times. By — Madison Staten Madison Staten By — Satvi Sunkara Satvi Sunkara Satvi Sunkara is an associate producer for PBS News Weekend. By — Juliet Fuisz Juliet Fuisz By — Alexa Gold Alexa Gold By — Zoie Lambert Zoie Lambert Zoie Lambert is a production assistant for PBS News Weekend.