Howard Jacobson reflects on his upcoming 'significant birthday' and why he's become a willing participant in the ways of personal trainers.

'I say trainer but I am past training,' writes Howard. 'He's more my stretcher. My wife's stretcher, actually, but she doesn't want to be stretched while I shrink. I refused to have him at first. But I capitulated. It was either that or watch my wife by stretched to twice my length'.

So down on the floor he goes, 'hoping someone - anyone - will think I'm a weekend younger than I actually am'.

Producer: Adele Armstrong
Sound: Peter Bosher
Production coordinator: Gemma Ashman
Editor: Richard Fenton-Smith.