Attention deficit disorder is a mental health condition that causes a person to experience symptoms such as impulsiveness, inability to maintain focus, increased distractibility, hyperactivity, and more. Both children and adults of any gender can have this type of disorder. Though it is most often first diagnosed in childhood, it can be diagnosed later in life. Adults with ADHD have personality traits including low self-directedness, high novelty seeking, low cooperativeness, and harm avoidance. If you have ADHD, you may be interested in activities that are exciting and mentally stimulating.