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Dr. Michael Breus aka The Sleep Doctor: How to Optimize Sleep & Productivity, Sleep Chronotypes, The One Trick For Circadian Rhythm Mastery and More

The Dream Bigger Podcast

CHAPTER

The Effects of Caffeine on Sleep

The half life of coffee is between six and eight hours, depending upon how quickly a metabolizer you are. So I ask people to stop at two thinking if they're a longer metabolizer, like eight hours, that puts at least 50% of the caffeine out of their system by 10. And then is the effect of alcohol the same even if you've just had one glass? It has a lot to do with your size, your weight, male versus female, metabolism, age, history with alcohol. There's a whole host of different effects.

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