Fresh Air · 2025-11-29 · 54 min · 8,220 words

Best Of: Nutritionist Marion Nestle / Science Writer Mary Roach

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This week on Shortwave, the internet is obsessed with inflammation. And yeah, it is true. Inflammation is at the heart of nearly every disease in the body. But it's also the body's natural response to danger. So who really needs to be worried about it?

Find out on Shortwave, the science podcast from NPR. From WHYY in Philadelphia, this is Fresh Air Weekend. I'm Tanya Mosley. Today, nutrition policy expert Marian Nessel. Decades of studying the food industry have given her, as she puts it, a clear-eyed view of what we're up against every time we walk into a grocery store.

The purpose of a supermarket is to sell as much food as possible to as many people as possible as often as possible at as high a price as they can get away with. I can't say that enough. Also, we hear from science writer Mary Roach. Her latest book, Replaceable You, is about replacing human bodies. body parts thanks to promising research and breakthroughs.

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