NPR's science podcast Short Wave brings us stories on food fortification, why some people don't seem to get the flu, and a study on how much vigorous exercise you really need.
It's time now for our science news roundup from Short Wave, NPR's science podcast. And I'm joined now by Emily Kwong and Berly McCoy from the show. Hi to both of you. BERLY MCCOY, BYLINE: Hi, Juana.
Time now for our science news roundup from Short Wave, NPR's science podcast. And we have the show's two hosts here, Regina Barber and Emily Kwong. Hello. REGINA BARBER, BYLINE: Hey. EMILY KWONG, ...