Most children diagnosed with attention deficit hyperactive disorder (ADHD) don't outgrow the disorder, as widely thought as a study suggests that it manifests itself in adulthood in different ways and waxes and wanes over a lifetime.  

The researchers indicate that decades of research characterise ADHD as a neurobiological disorder typically first detected in childhood that persists into adulthood in approximately 50 per cent of cases. But this study found just 10 per cent of children completely outgrow it.