ADHD Private Diagnosis ADHD Affects the way that a person performs. It is a neurodevelopmental issue that can be treated with medication. It is important to remember that this isn't an excuse for bad behaviour. Psychiatrists have the best tools to identify ADHD. They also have access to many diagnostic http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=859978