Ive heard that a cup of coffee can equal a half hr of sleep....and then ive heard that it can just give u a bolt of energy for a certain amount of time...but i can never really tell what it does for me. sometimes i get a shot of expresso but i can never tell how long its keeping me awake for. does anyone know how much caffeine (as in 1 cup of coffee or 1 shot of expresso etc) will keep u awake for how long? im not looking for real statistics oor anything....i just can never tell even with myself. thanks!
Sounds like you need one of those charts like they have for drunk driving (you know, like 1 shot takes 1 hour to wear off or whatever).
This is not scientific or anything, but when I used to stay out all night and have to work in the morning, I would drink about 1 cup an hour and then after 3 or 4 hours I wouldn't need anymore. I would just be awake.