Recently I met a young woman who suffered from anorexia. She told me how her illness made her dishonest (people with this disorder often lie about how much they eat) and about how she made life hell for her family for many years. “I hope you don’t think I’m a horrible person,” she said eventually.I didn’t; but what I did think was how unbearably sad it is that so many young people suffer from mental-health problems. At least one in 10 of those aged between five and 16 is now affected: that’s about three pupils in every class in Britain. On every indicator, the figures are up: over the last 10 years, for example, 68 per cent more young people are being admitted to hospital after self-harming. Twice as many youngsters now seek help for an eating disorder