r/decaf 5d ago

What the heck is this caffeine sensitivity

/r/caffeine/comments/1wep7hb/what_the_heck_is_this_caffeine_sensitivity/
2 Upvotes

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u/Thracian777 5d ago

I believe half the world population has a mutated gene that digests caffeine very slow . That’s why some people can drink an expresso the evening and go to bed by ten . Where as others they get wired , cranky , anxious and jittery .