* A disorder resembling anorexia was first written about by physician John Reynolds in 1669. Anorexia nervosa was first formally described as a medical condition in 1873 by Charles Lasegue as "l'anorexie hysterique"
* Anorexia has a higher mortality rate than leukaemia and the highest mortality rate of all psychiatric disorders
* There is no single cause, but bullying by peers is a notorious trigger, and there is no one effective treatment. What works for one child can be a nightmare for another