Adults With Attention Deficit Hyperactivity Disorder (ADHD) Adults Are entrusted with a variety of responsibilities and roles that require attention, organisation focus, concentration, and calm. Undiagnosed ADHD is likely to struggle with some of these duties. This can have a negative impact on their lives and lead to lower self-esteem https://www.iampsychiatry.uk/adult-adhd-assessments-and-treatments/