According to Dr. Martin Blaser, the overuse of antibiotics has contributed to killing off strains of bacteria that typically live in the gut. Joe Raedle/Getty Images hide caption

toggle caption
Joe Raedle/Getty Images

Fresh Air Weekend: 'Missing Microbes,' 'The Both,' And Mike Judge's 'Silicon Valley'

  • Download
  • <iframe src="https://www.npr.org/player/embed/304565419/304924681" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">