The unicorn camp holds that hyperactive and inattentive behavior result from stressors in the child's psychosocial environment, like stress or trauma in the child’s home, school, or even daycare. They do agree that some kids are overly energetic and have a hard time focusing, and that stimulant drugs can help people calm down and concentrate.
However, they do not think pharmaceutical drugs are the best way to help children. Instead, they go back to what they think is the origin of ADHD -- their social environment. Family therapy, behavioral therapy, and even parent training classes have shown to be sufficiently effective in reducing hyperactivity and inattentiveness, according to some studies.