well, its like with all drugs. i have the choise if i want to get some chemical reaction effects, or want to have the ordinary .. uhm.. chemical reaction effects. well, bether more than one choise.
well, last weekend i had a heart-speed-boost (started beating at 3x the speed), and my breathing stopped. and the only way to get the heart-beat down, is to not start breathing again (over some minutes).. doesn't hurt me (feels quite fun), but people look strange.. "he didn't got any air and now he blocks himself from breathing completely"..
yeah, sometimes.. dying would be more easy than living.. definitely.