How do you call that condition when you can drink e.g. 8 cups of coffee, not feeling any kick and going to sleep like a baby as if caffeine never mattered?
Nay, I meant some people just don't react to caffeine and I am curious what is the name of this "medical condition"; this pertains to myself and a few others I know. We can drink coffee/coke/whatever and sleep instantly and have zero boost from caffeine.
