3min chapter

The Knowledge Project with Shane Parrish cover image

#167 Dr. Gina Poe: The Science of Better Sleep

The Knowledge Project with Shane Parrish

CHAPTER

The Effects of Caffeine on Sleep

The half-life of caffeine varies from person to person. Alcohol definitely disturbs your sleep, and it actually inhibits REM sleep as long as it's on board. The metabolism of alcohol sends an arousing, a birding message to your brain. And I don't know what that arousing signal is.

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