Guaranteed? How does your opinion guarantee something? What evidence do you have to back up said "guarantee?" An F1 driver's training itinerary? Anyone can sit in a sauna for 4 hours. Is it their ability to sit for hours at a time? is their ability to sit in a leather suit for that time combined with their incredible reflexes that allows them to use their arms to steer. I've steered before, it's tough stuff. hell, i drove through Chicago last summer on Phish tour. I was tired, and that 10 miles I run every day is the only way i made it through the day, i tells ya (sarcastic rant over) You've said some dumb shit over the years AD (i'm guilty too, we all are), but saying an F1 driver is in better shape than a hockey player, a football player or a tennis player is complete bunk, dude. I'm far to lazy to be dragged into a debate on what makes a sport a sport.