Ok so I love coffee and stuff but sometimes I wonder how long caffeine actually stays in your body? Like I drink a cup in the morning but still feel wired at night sometimes and think “why the heck isn’t this leaving me??”
So I googled and here’s what I found out, hope it helps:
What even is caffeine?
It’s a stimlant that wakes you up by messing with your brain chemicals. Makes you feel alert and awake but too much can make you jittery or keep you up all night.
How long caffeine stays?
Usually caffeine half-life is like 3 to 5 hours. That means after 3-5 hours, half the caffeine you drank is still in your system. So if your coffee had 100 mg caffeine, after 3-5 hours 50 mg is still there.
After 6-10 hours there’s still some caffeine but less. But this depends on your body, weight, age, if you smoke or take meds.
Why do some ppl feel caffeine longer?
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If you dont drink caffeine often, your body takes longer to get rid of it
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Pregnant women process caffeine slower so it sticks around more
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Smokers get rid of caffeine faster
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Some meds slow down caffeine metabolism
How long caffeine affects you?
Usually the buzz hits in 30 to 60 minutes after drinking and then slowly fades over few hours. But sometimes people still feel jittery or can’t sleep after 6+ hours.
How to get rid of caffeine faster?
Honestly not much you can do. Drink water or exercise might help but caffeine mostly just needs time to leave.
Final thoughts
Caffeine usually stays in your body several hours but exact time depends on person. So if you wanna sleep good, don’t drink coffee late at night lol.
Hope this helps you stop wondering why your afternoon coffee still keeps you awake!