05.09.2019 - By iHeartPodcasts
The craving for and practice of eating earth is more widespread than you might think. Learn why researchers think people engage in pica (a.k.a geophagy) in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.