Mental illnesses are medical conditions that disrupt a person’s thinking, feeling, mood, ability to relate to others and daily functioning. Just as diabetes is a disorder of the pancreas, mental illnesses are medical conditions that often result in a diminished capacity for coping with the ordinary demands of life. According to Centers for Disease Control and Prevention, ADHD is a condition that impairs an individual’s ability to properly focus and to control impulsive behaviors, or it may make the person overactive. ODD is a behavioral disorder characterized by hostile, irritable and uncooperative attitudes in children, according to Children’s Mental Health Ontario. Children with ODD may be spiteful or annoying on purpose, and they generally direct their negative actions at authority figures. Children with behavioral disabilities engage in conduct which is disruptive to classroom functioning and/or harmful to themselves and others. To be diagnosed as a behavioral disability, the behaviors must not be attributable to one of the aforementioned psychiatric disorders.