Isn't depletion of minerals an issue when drinking coffee?
I'm exactly the same way, including general anesthesia, they have to keep giving me more and more to put me to sleep, the anesthesiologist always says "you should be asleep already", and I always tell them it's going to take much more than they guessed, and even worse, I wake up before the procedure is over and they have to put me back under, of course the doctor tells the nurse I won't remember waking up, WRONG.. I wonder what it is about us that gives us an overall high tolerance against sedatives and stimulants?I can drink 2 or 3 energy drinks in a row (at 160mg caffeine each) and not feel a thing. It might help me stay awake if I'm really tired, but I'm not even sure if it does that (and it certainly doesn't mitigate the sleepiness). I'm similarly insensitive to a lot of other chemicals too though - I am relatively insensitive to alcohol (I don't feel it until I'm most of the way through 12oz of a 10% stout, for example), and when I had my wisdom teeth removed, I needed to have significantly more anesthetic than the dentist had originally estimated. I do still drink caffeine from time to time, but it's largely just in the hope that it will help me stay awake (even if only slightly), since I don't notice a significant effect.
You can have a genetic variation that makes you less susceptible to the effect of certain classes of anesthetic. Some people have the opposite and are hypersensitive, which can be very dangerous. It advocates for personalized medicine, based on genetic information.I wonder what it is about us that gives us an overall high tolerance against sedatives and stimulants?
I don't find that coffee helps to wake me up in the morning any faster than without it, but I enjoy the taste as part of my breakfast.Instead of pointlessly debating whether caffeine affects our body (which it does of course), I want to know whether you really "feel a difference" when you drink coffee.
Does it prevent you from sleeping?
Can you stay concentrated on your studies for a longer time/and or later at night?
I really love coffee for its taste, I drink 1 strong and big coffee (about 350 ml) per day at least, yet I feel absolutely nothing.
I don't feel it perturbs my sleep or make it touger to reach. It takes me generally over 2 hours of laying in my bed before I get to find sleep, no matter if I drink a coffee just before sleeping.
I don't feel it helps me to keep concentrated for a longer time when I study, etc.
I know my heart beat is very likely faster after drinking a coffee but apparently that's not something I can notice, unless of course if I'd measure it with a chronometer.
On the other hand I can feel a difference if I drink a 200 ml glass of beer at 4% alcohol.