I work overnight shifts (11pm-7am) and take caffeine pills to stay awake. When I get home, even if I take more caffeine I’m sometimes still too tired and fall asleep. Why does it eventually stop working? Is there some sort of chemical limit? Why can’t caffeine replace sleep for longer periods of time (like days on end)?
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Impprtant info, when you drink a coffee even 12 hours later you still have 25% of the coffeeine your system. Especially when you get old this can become a huge fucking problem with sleep.
Once i started experimenting with caffeein free coffee it opened my eyes. Now i only use caffeein in the morning, its a gamechanger. If you think you can only function coffee you are screwing yourself.
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