Regardless, it's time that ADHD be recognized for what it is: a neurodevelopmental disorder, not a myth, nor a result of poor parenting. Below I will outline structures of the brain that are different in volume and shape and how those differences are thought to be linked to behaviors associated with ADHD. The ADHD brain is structurally and functionally distinct, and hopefully, the evidence below will keep the naysayers quiet... for now.