Curiosity Daily Podcast: How GPS Clocks Work (w/ Hugo Fruehauf) and Why Stress Turns Hair Gray

Learn how atomic clocks and how GPS clocks work, with help from the engineer who made GPS clocks possible: Hugo Fruehauf. But first, you’ll learn about how Harvard researchers finally figured out why stress can turn your hair gray.

February 13, 2020

Episode Show Notes:

Why Stress Turns Hair Gray by Grant Currin

  • Zhang, B., Ma, S., Rachmin, I., He, M., Baral, P., Choi, S., Gonçalves, W. A., Shwartz, Y., Fast, E. M., Su, Y., Zon, L. I., Regev, A., Buenrostro, J. D., Cunha, T. M., Chiu, I. M., Fisher, D. E., & Hsu, Y.-C. (2020). Hyperactivation of sympathetic nerves drives depletion of melanocyte stem cells. Nature, 577(7792), 676–681. https://doi.org/10.1038/s41586-020-1935-3
  • Clark, S. A., & Deppmann, C. D. (2020). How the stress of fight or flight turns hair white. Nature, 577(7792), 623–624. https://doi.org/10.1038/d41586-019-03949-8

Additional resources from Hugo Fruehauf:

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