A just published study by a team of researchers (which I am part of) has shown that it is the youngest children in the classroom who are most likely to be diagnosed with ADHD. The systematic review was published in the Journal of Child Psychology and Psychiatry. Seventeen studies covering more than 14 million children from various countries were examined. Lead author Martin Whitley commented in the Daily Mail that “It appears that across the globe some teachers are mistaking the immaturity of the youngest children in their class for ADHD.” The study contributes to the central debate about ADHD and the question of medicalization: Do children diagnosed with ADHD have a brain disease?

Source: Are We Labeling Normal Development as Pathology? | Psychology Today Australia