Attention deficit hyperactivity disorder (ADHD) in adults is common, impairing and often unrecognised. Comorbidity is very common and may compound the impact of ADHD. It is important that a diagnosis of ADHD is made following a high-quality assessment. Symptoms and social outcomes can be improved by treatment, particularly medication. Non-pharmacological treatment may be more effective in those who are also on medication, and psychoeducation and environmental modifications are also important….