Sport and health are so important to our nation that they deserve to be right at the front of people's minds.

There are lots of women tennis players, for instance, but because not many of them seem to have much personality, they're interchangeable. You don't have a feeling about them.

You can be an Olympic champion in 9.5 secs, but to be the greatest, there's more to it. It takes a bit of forethought and a lot of mental application.

Having the ambition of becoming Olympic champion is a whole different ambition from wanting to be the greatest.

I didn't even know what it was when I started. But I was lucky. I found it at 16. Most people don't discover decathlon until they're 21 or 22.

I don't even have my own computer.

There's no day when I don't think it would be great to be 25 years old and have the Olympics coming in less than 300 days - and be the best in the world. I can't think of anything so motivating.