EPISODE · Oct 15, 2025 · 18 MIN
1144: The Science Of Replacing Body Parts, From Hair To Hearts
from Science Friday · host Science Friday
It seems like every week, there’s a new headline about some kind of sci-fi-esque organ transplant. Think eyeballs, 3D-printed kidneys, pig hearts.In her new book, Replaceable You: Adventures in Human Anatomy, science writer Mary Roach chronicles the effort to fabricate human body parts—and where that effort sometimes breaks down. Host Flora Lichtman speaks with Roach about everything from hair transplants to 3D-printed hearts, and why our anatomy is so hard to replicate in the first place.Guest: Mary Roach is a science writer and the author of Replaceable You: Adventures in Human Anatomy.Transcripts for each episode are available within 1-3 days at sciencefriday.com.Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
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In “Replaceable You,” Mary Roach describes mind-boggling efforts to replace human body parts—and why it’s proven to be so difficult.
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1144: The Science Of Replacing Body Parts, From Hair To Hearts
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