Presented by Jenni Murray. Who decides what constitutes a "perfect" body? Despite the recession cosmetic surgery increases in popularity - the artist Alison Lapper discusses body image with Phillippa Diedrichs, a psychologist at the Centre for Appearance Research at the University of the West of England and Anna Richardson from Channel 4's Supersize V Superskinny. We look at the role of Theodora in history, new guidelines on treating meningitis in young people and live jazz from the American singer Nnenna Freelon.