In reply to Blizzard: Hell yes. In my late teens, early 20s my idea of fun was surfing on the roof of the car.
Mid to late 20s I discovered the thrill of downhill mtb racing.
Early 30s I took up trad climbing and mid to late 30s was/still is the time of the motorbike.
Life is more than just physical risks though. I run my own business even though I could earn more and have less stress if I worked for someone else in my field but I enjoy the risk involved in knowing that if I make a decent mistake I can loose it all, the buisiness, my house and all my stuff.