From back cover:

“In 1948, “neuropsychiatry” was divided into “neurology,” dealing with diseases, and “psychiatry,” dealing with emotions and behaviors. If there is a macroscopic, microscopic, or chemical abnormality, a disease is present. Nowhere in the brains or bodies of children said to have ADHD or any other psychiatric diagnosis has a disorder/disease been confirmed. Psychiatric drugs appeared in the 1950s. Psychiatry and the pharmaceutical industry authored the “chemical imbalance” market strategy: they would call all things psychological “chemical imbalances” needing “chemical balancers” —pills.”

There Is No Such Thing as a Psychiatric Disorder_Disease_or_Chemical Imbalance pdf