Adults With Attention Deficit Hyperactivity Disorder (ADHD) Adults Have many responsibilities and roles that require attention, organization, focus, and composure. Undiagnosed ADHD may cause people to handle certain duties. This could have a negative impact on their lives and cause low self-esteem. In the UK, the NICE guidelines state that https://www.iampsychiatry.uk/adult-adhd-assessments-and-treatments/