Laughing and crying are very similar. They're an extreme response to life. You see it in children who start laughing hysterically.

I cannot step into any day without help. I have a fantastically engaged husband who is very present for his children and our family life. We've got a brilliant nanny, other help from parents-in-law, godparents, friends. Also, I've had incredible women around me in the business.

When I was 17, a neighbour I knew well died of cancer, and I became au pair to her three little girls. In circumstances like that, when you can't really help, I think it's a human response to do something beyond oneself. So I did a sponsored parachute jump for Cancer Research. It was exciting and ridiculous.

I am interested in shows that are not out-and-out gag fests: you see the truth of a broken heart behind them. That is what life is like: it's really funny, you see funny things as soon as you step out of the room, but underneath that is a whole bag of broken hearts. It's that real pain and that real hilarity that makes life so intriguing.

A lot of middle-aged women are children still trying to find their way.

Radio listeners often have a very fertile imagination when it comes to body shape.