Diagnosis of Attention Deficit Hyperactivity Disorder (ADHD) has soared in recent years, but researchers have found it’s still under-recognised and under-diagnosed, especially in adults over the age of 65.
About 2.5million people in the UK have ADHD, according to the NHS. Data published in March 2026, also revealed a further 683,088 had been referred for an ADHD assessment - an increase of more than 130,000 on the previous year.
