It is possible to develop ADHD as an adult, after a brain injury for example, but the majority of those diagnosed later in life will have been living with it since birth.
Talking about her treatment Zoe Twin, 21, from Orpington in Kent, was first diagnosed in the middle of her GCSE exams six years ago.
She told the BBC that despite wanting to say she wouldn’t need to be on the medication for her whole life “at the moment it’s what I need.”
Andrea Bilbow, ceo at the National Attention Deficit Disorder Information and Support Service (ADDISS) argued that the changing figures represented the new recognition of the illness in adults explaining: “I wouldn’t say this is a dependency problem, rather a system getting people the support they need.”
Tony Lloyd, chief executive of the charity ADHD Foundation added that the changing figures in fact showed a greater understanding of ADHD and that untreated it can have “a very significant impact on somebody’s health, wellbeing, employability and their life chances.”