When most people hear the term Attention Deficit Hyperactivity Disorder, or ADHD, they usually picture young overly active boys, who have difficulty sitting still and staying focused. What they rarely picture, are bright, daydreamy, girls unable to get their school work done, or forty-year-old moms struggling to keep their families and households organized, their employers happy and their volatile emotions in check. While all of these presentations of ADHD are accurate, it is the girls and women with ADHD who remain significantly underdiagnosed and undertreated in Canada due to our lack of awareness, training and research. This is placing some of our most vulnerable Canadians at risk.