I think fans of the sport have a good understanding now of how fit Formula One drivers need to be.

I need to develop a car and engineer a car in a position that feels comfortable for me, and I don't think anyone can do a better job than I can in that position. The problem for me is if I can't get the car there I do struggle more than some.

My school reports always used to point out that my concentration levels were appalling. I never listened in class because I was always daydreaming about racing. I never thought for a moment about doing anything else. There was no guarantee that I'd make a career in it but I never had any plan B.

I've spent as much as 30 grand on a watch but it's not about flaunting my wealth. I don't have many extravagances but watches are my biggest one. I must have 30 of them now. I've been collecting since the age of nine, when I won a black TAG in a karting event.

Between stagnant wages and the cost of everything going up - particularly health care and college tuition - people have less money to save and less money to spend.

Five days a week, I read my goals before I go to sleep and when I wake up. There are 10 goals around health, family and business with expiration dates, and I update them every six months.

Those who believe that health is a commodity, on par with cars or computers, fail to grasp the basic economic lesson that health is very vulnerable to exposure to the markets, not least due to the profound asymmetries in power between the providers and consumers.

Every December I take two or three weeks off. After an entire season of training and climbing, my body needs the break.