what is adhd?
adhd is a chronic, complex neurodevelopmental disorder that affects five to nine per cent of canadian children and three to five per cent of adults, according to the
centre for adhd awareness, canada (caddac). it’s the most common neurodevelopmental disorder in children, affects males and females almost equally (although males are usually diagnosed more often), and crosses all ethnic and socioeconomic backgrounds.
there are three types of adhd, which can present as mild, moderate or severe: hyperactive, inattentive and, the most common, a combination of the two.
the hyperactive type, which affects mostly boys, is characterized by constant motion, restlessness, impatience, impulsivity, fidgeting, interrupting others, running or climbing excessively, or talking constantly, according to the
centre for addiction and mental health (camh).
the inattentive type presents as trouble paying attention, difficulty staying focused, frequently having problems with organization and planning, easily distracted, often forgetful and tending to lose things.
adhd causes, diagnosis and treatment
studies have yet to determine an exact cause of adhd, but researchers agree there’s a strong genetic link: if one or both of your parents had it, you — and your siblings — are more likely to inherit it. other research has shown environmental factors, such as exposure to toxins as a child, to be a contributor.