Attention deficit hyperactivity disorder (ADHD) is a mental health condition that causes symptoms like difficulty paying attention or sitting still, trouble organizing tasks, and being easily distracted by extraneous activities. It also can cause problems in school and at home. It affects people of all ages and can have a long-term impact on a person's life. Modalert 200 mg stimulates the brain and helps it focus. It can improve your mood and productivity. It can also help you sleep better at night. It can also reduce the number of wakefulness episodes during the day.