It’s so reliable. Conks me out by 11:30. Two coffees, of course I’ll be up until 3am. Is it just crashing or what goes on here? Yes I brushed my teeth
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Without googling it, I can only tell from memory that short term coffee gives your brain a wake up call, but after that it has the opposite effect. Something like that
I saw a video the other day from an anaesthetist that explained the caffeine is a very similar shape to adenosine that your body produces throughout the day that eventually causes you to fall asleep.
The caffeine therefore locks into the receptors, blocking its absorption and giving you a wake up boost.
