Adrenaline, are you addicted?
What is the thing that excites you? Runners high, extreme sports like bungy jumping or sky diving?
For some people they like the rush of adrenaline.
I find it to be scary. The rush of it makes me nervous and I don't enjoy it at all. It's probably the control freak in me but I would rather walk on a calm gentle path than go rock climbing.
Where do you stand?