Douglas College student research essay submitted as partial requirement for Psychology 3341 course as part of the STEP UP (Student Teams Exploring Pervasive Urban Problems) program. Faculty sponsor to submit this research essay to DOOR: Dr. Nicole Vittoz. Attention Deficit Hyperactivity Disorder (ADHD) is one of the most prevalent mental disorders in treatment and recovery centers (van de Glind et al., 2014). Thus, this suggests comorbidity between ADHD and substance use disorder (SUD). As a result, we believe that early treatment of ADHD could help prevent future SUD. Furthermore, early education and assessment would allow more children with ADHD to get the treatment they need before issues arise. Additionally, we suggest that more specialists be employed in schools to allow for an accurate and effective diagnosis of ADHD. Finally, we propose that psychological treatments, whether those be therapy or pharmaceuticals, be covered by healthcare. We can ensure that all children can get the treatment they need to treat ADHD and prevent future SUD.