2 JANUARY 1993, Page 21

What a pain

Sir: Alistair Forbes always gives the impres- sion of being better informed about his old friends' sex lives than their biographers, so perhaps he could answer this question about the subject of his most recent review, John F. Kennedy (Books, 12 December): how did Kennedy reconcile chronic lumbar pain with satyriasis?

Michael Barber

56 Ridgway Place, London SW19