Born Naughty?

The doctors meet eight-year-old Bobby, who won't eat anything except chocolate, sweets, cakes, chips, cheese, yoghurt and baked beans. There is also three-year-old Jessi-Jai, who is still not speaking in sentences and is constantly throwing tantrums.

The doctors meet nine-year-old Thomas, who is very rigid in his thought patterns and finds change difficult. He also finds it hard to socialise with other children and is obsessed with Lego.

The doctors meet eight-year-old Charlie, who can be so destructive and violent that his mum Maxine has had to call the police. Dr Ravi and the experts wonder if a controversial new diagnosis might be an issue.