Much as I loved doing 'The Big Breakfast,' it almost became automatic. I need something to keep my brain ticking over, something that I have to concentrate on.

I eat quite healthily normally but, like everyone, have relapses and give in to the odd cake.

I've never been on a fad diet.

Everybody thinks if you do one thing, you can't do something else. So I like the fact that I can be versatile if I want to.

In LA, I live on sushi or salad.

I do like my breasts. They're great, so much fun. You can do what you like with them.

I did the Kilimanjaro climb a few years ago, then the six-day trek to Machu Picchu in Peru so this bike ride to raise money for Great Ormond Street seemed like the next big challenge.