Bryan Johnson· Author
Remember caffeine has a six hour half life.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
Remember caffeine has a six hour half life.
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Caffeine has a six hour half life.
So caffeine has a 6-h hour halflife So if you have let's call it 200 milligrams of caffeine right before your show let's say 7 by uh 1:00 a.m half that caffeine is still in your system So it's 100 milligrams in your system when you're going to bed
So, caffeine has a 6h hour halfife.
Caffeine has a five to six hour half-life. So a cup of coffee at 3 p.m. leaves half a cup of coffee in your system at 9:00 p.m.
the quarter life of caffeine is 12 hours which means that if you drink coffee at eight o'clock in the morning and you're drinking one cup you're getting 200 milligrams of caffeine and that 200 milligrams is going to equal 50 milligrams 12 hours later that's what a quarter life means