The last in a Horizon trilogy of documentaries on the nation's weight and health.
Anorexia has the highest mortality rate of all psychiatric illnesses, but it's a disease that has perplexed scientists, along with bulimia, for many years. Horizon examines some of the ground-breaking research into these eating disorders.
See today's choices.
(Digital widescreen)
BBC Video and Book: Fighting Fat, Fighting Fit video, £10.99, and book including health advice and recipes, £4.99
BBC Actionline: phone [number removed] for free and confidential help after the programme until midnight: Ceefax: page
Website: [web address removed]