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It's so funny but encouraging to read this. I started drinking coffee in college and could easily finish a whole pot, or have 3 Starbucks venti drip coffees in a day, but I was not sensitive to caffeine at all and could sleep right after. It also didn't seem to have that wake-up alertness effect either

Then something changed, and now I am sensitive to it like a normal person. It does wake me up after a sip or two I can feel it, and I can easily have 'too much' if I have 2-3 cups in too short of a timespan, so I've had to learn to slow down.

Having said all of this, my personal 'last call' is 6pm, with the idea that I will be able to sleep at 12-1am. But if I drink coffee after 6pm I might be delaying that bedtime a little.

It will be interesting to learn more about the effects of how much, and how long. Should I be tapering off hours before 'last call'? What is the best 'last call' time in the day and should it be earlier? I'll have to track some of this and figure this out!



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