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cookiefulloarsenic
Oct 30, 2011

Turpitude II posted:

caffeine makes me sleepy. not awake and then tired afterwards, just directly, consume caffeine and feel the urge to nap. is there any way to change this or?

You might be a fast metabolizer of caffeine. Caffeine inhibits adenosine receptors in the brain. Adenosine controls sleepiness/wakefulness. Adenosine continues to be produced while receptors are inhibited and then binds to receptors once caffeine wears off, making people feel sleepy when their coffee wears off.

https://www.medicalnewstoday.com/articles/326443#how-can-coffee-make-you-feel-tired

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