When It's More Than ADHD

People with ADHD are three times more likely to develop depression than the general population. Depression and ADHD share some symptoms, such as inattention, sleep problems, and lack of motivation, but the causes of symptoms are different. With ADHD, you may lack motivation because you are overwhelmed. With depression, you may not want to do anything at all. If feelings of sadness, lethargy, or insomnia persist, despite ADHD treatment, talk to your doctor.