This week on the WHOOP Podcast, WHOOP Global Head of Human Performance, Principal Scientist, Dr. Kristen Holmes sits down with Dr. Gina Poe, neurobiologist and expert in REM sleep and memory consolidation. Together, Dr. Holmes and Dr. Poe unpack what actually happens when you’re asleep and why sleep is essential not just for memory, but emotional resilience, longevity, and high performance.
This episode breaks down the different stages of sleep and how they reshape the brain, regulate the nervous system, and actually clean the brain. Dr. Holmes and Dr. Poe provide insight on daily habits to optimize sleep quality, including timing, exercise, and stress regulation.
(00:23) Introduction to Dr. Gina Poe
(00:58) Dr. Poe’s Journey to Sleep Research
(06:58) Sleep Timing in Relation to The Body’s Physiological Rhythm
(12:29) Sleep Pressure and Melatonin Production
(14:52) REM Sleep Reshaping the Brain Each Night
(21:03) Effects of Short Sleep Cycles
(30:17) Relationship Between Skipped Sleep Cycles and Neurodegenerative Disease
(31:36) The Importance of Sleep Spindles & Exercise on Sleep Performance
(40:46) How Sleep Spindles Change Over A Lifespan
(43:44) Daily Practices That Promote Healthy Sleep
(49:15) Shift Work, Sleep Cycles, & Human Growth Hormone
(55:01) Metabolism and Sleep Cycles: What Happens To The Body’s Energy Storage
(59:21) Dr. Poe’s Dream Sleep Study
(01:01:09) What Healthy Sleep Looks Like
(01:05:38) Rapid Fire Takeaways
Dr. Gina Poe:
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The Science of Stress & Sleep For Optimal Performance with Dr. Bill von Hippel
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