I don't drink it very often. Not for any kind of health reason; I simply don't usually go for drinks that are caffeinated. I'm a high-energy morning person, so I rarely even drink coffee. But for that reason, caffeine hits me like a sledgehammer. I just finished a 12-oz mug of expresso, and I'm twitching and tweaking like mad, LOL. My usual ferrety tendencies are in overdrive. YAY! *spins in circles, stopping to look at sparkly things* How sensitive are you to caffeine? I've had coworkers who could drink endless cups of coffee yet don't seem affected by it at all. Yeah....not me, LOL.