When did you last see your doctor? It was in1995 - in the Cafe Royal Green Room. He wanted to see my opening night.

What kind of patient are you? Jolly determined.

What's the most pain you've ever been in? Giving birth.

What's your biggest vice? Self will.

Have you given anything up for your health? Jogging.

How do you deal with stress? I read and practise Florence Scovel Shinn meditation.

What alternative therapies have you tried? (Did they help?) Reiki and acupuncture. Yes.

Is there any illness you particularly fear? No.

What do you consider the biggest medical breakthrough this century? Plastic surgery.

And your secret for good health? Eight hours sleep a day.

• Diane Langton has recently taken over the role of Mama Morton in the musical Chicago.