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24: Self Experimentation, Amputation Archaeology, and Learning to Love PowerPoint

Let's Learn Everything!

CHAPTER

Is There a Body Clock?

In 1962, Michelle Seifra spent 63 days alone in a cave in the French Alps. He found that his sleep wake cycle lengthened over that time and his perception of time became distorted. So these isolation studies were really pioneering in understanding sleep cycles. They basically kicked off an entire field of sleep study that didn't exist for decades.

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