Micro Wave: What Makes Curly Hair Curl?
![Micro Wave: What Makes Curly Hair Curl?](https://www.podcastworld.io/podcast-images/short-wave-fs1irssd.webp)
Hair scientist Crystal Porter explains the science behind curly hair (hint: It involves mushy cells in teeny-tiny tunnels). Plus, a bit of listener mail from you! Which you can always send by emailing shortwave@npr.org.
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