At a time when an apple was something Steve Jobs gave to his first grade teacher, Dr. Clancy McKenzie happened upon a discovery that would forever change not just his life, but his patients’ as well. It hit him like a bolt of lightening. Without so much as a hand-held calculator, McKenzie unearthed the origin and mechanism of serious mental and emotional disorders. His proscribed treatment and three levels of prevention quickly followed. After forty plus years of research and studies, the author has made the results and prevention methods available to the general public for the first time in his new book: “Babies Need Mothers” – How Mothers Can Prevent Mental Illness in their Children.


“Dr. McKenzie’s new book is a rare example of careful conceptual reasoning about basic categories in medicine. Ultimately this is what is sorely needed in rational thinking about the mysteries of mental illness. This book is a fascinating contribution and well worth reading precisely because it upsets the applecart. I recommend it to anyone who wants to get beyond rigid categorization in psychiatry and look at enduring problems of the mind in new ways.”

Raymond Moody, Author, Life After Life; MD, PsyD, PhD Philosophy

“Dr. McKenzie’s book is revolutionary. Some long sought answers to causes of psychosis and other severe mental illnesses are explained in clear and understandable language. He not only describes cause and effect, but also provides remedies for healing that are unique and long lasting. He shows clearly and unmistakably the way to recover health, and his findings could change the prevailing way of treating chronic mental difficulties.”

Harold Stern, PhD, Psychoanalyst

“This book is rich in new ideas that are a further development of the enlightening, stimulative and provocative ideas described in his earlier book with Lance S. Wright, MD: Delayed Posttraumatic Stress Disorders from Infancy: The Two Trauma Mechanism. I have used this latter book in my courses at Georgetown University and I plan to continue to use the ideas of Dr. McKenzie in my classes. No one will regret reading this book.”

Wilfried Ver Eecke, Professor in Philosophy, Adjunct Professor in Psychology
Georgetown University

“Dr. McKenzie has identified the origin of serious mental and emotional disorders, and has discovered how mothers, through a loving and caring approach, can actually prevent thesei llnesses from ever occurring. Just as Albert Einstein’s contributions were a quantum leap beyond Newtonian physics, so Dr. McKenzie’s contribution to understanding cause is a quantum leap beyond present theories. This allows for true prevention for the first time.”

Dr. Orest Bedrij, Author of ‘1’: The Foundation and Mathematization of Physics

“My research for a movie brought my attention to Dr. McKenzie. Like many persons ahead of their time, Dr. McKenzie is sometimes viewed as a threat to others in his field. This is unfortunate because clearly his means of prevention could eliminate a very large portion of mental illness in this country and worldwide. His work is readily understood by professionals and laypersons alike. He has received high endorsements from members of the US Senate and Congress. A number of top professionals, who thoroughly reviewed his work, consider his findings to represent one of the greatest breakthroughs in psychiatry in the second half of the 20th Century.”

Meg Switzgable, Independent Director/Producer, Documentaries on 60 Minutes
and PBS Frontline

“What is schizophrenia? Is it one thing or a combination of important issues beginning at the earliest part of life? Dr. McKenzie pulls together in a brilliant manner the issues comprising schizophrenia and gives us a greater understanding of the condition. I have been treating this condition for 54 years, and Dr. McKenzie has offered me a better understanding of the issues. I think this book is a must for the profession. Rarely mentioned elsewhere, is the importance of caring (loving) by the psychotherapist. I thought this was the basic issue, and Dr. McKenzie makes a special point of it.”

Jack Rosberg, PsyD Director, Anne Sippi Clinic and Foundation
Hardcover, Paperback and Kindle Edition:

Delayed Posttraumatic Stress Disorders from InfancyDELAYED POSTTRAUMATIC STRESS DISORDERS FROM INFANCY

Through literature review and their own research,
Drs. McKenzie and Wright demonstrate the profound relationship between infant trauma and the later development of serious emotional disorders. Evidence of early traumatic origin may soon be recognized as one of the most important research findings in recent decades. This model goes beyond prevalent thinking to show that biological research only measures the results of the disease process and does not address the origins of mental illness. This book identifies primary prevention and offers new treatment methods based on the recognition of the two-trauma mechanism.

Gordon and Breach Publishing Group


“I was very skeptical about Dr. McKenzie’s findings, but the Finnish database on 6,000 schizophrenic patients revealed a very high level of statistical significance. We confirmed a substantially higher rate of schizophrenia among those with a sibling less than two years younger.”

Sarnoff Mednick, University of Southern California

“This book breaks with traditional thinking from the first paragraph, offers an alternative to viewing, treating, managing and preventing serious emotional disorders … breaks ground in suggesting the role of early trauma in accounting for mental disorders throughout the life cycle, in identifying the two trauma mechanism, and in the conceptualization of early traumatic events relating to the development of Borderlines, Schizophrenia, PTSD, Autism, Symbiosis and other disorders – forcing academics to reevaluate our thinking. The research is respectable, adds to their arguments and is in support of their model.”

Charles F. Figley, Founding Editor-in-Chief, Journal of Traumatic Stress


During the 65 years that I have been privileged to serve people as a psychiatrist, it has become increasingly clear that every breakthrough in the study of the human mind serves as a stepping-stone to the next level of understanding.

For nearly three decades I have followed the development of Dr. McKenzie’s work in the understanding and treatment of serious emotional disorders. I have always admired his courageous tenacity in his pursuit of ideas that were beyond the boundaries of conventional psychiatry, which is where the greatest achievements invariably occur.

The two trauma mechanism represents a major contribution to the field of psychiatry. The findings in this book show that psychiatric illnesses are based on early trauma and follow a pattern of later activation precipitated by a major life crisis or significant stressor, and then multiple reactivation with little further provocation. This delayed posttraumatic stress disorder pattern of activation and reactivation holds true not only for schizophrenia, but also for mood disorders, anxiety disorders, psychoactive substance use disorders, eating disorders and more.

The concepts presented are based on sound psychodynamic principles supported by findings in the literature. Theory is a marriage between psychology and biology, spanning the neuroses and psychoses, from infancy to old age. It identifies mental illness as one mechanism, and psychology and biology as one process. As such, it is the beginning of a new unification theory of mental illness.

While valuable treatment concepts evolved out of new understanding, the most powerful implications are for prevention. The early trauma that leads to emotional disorders can be identified scientifically through the research methods presented, making it possible to eliminate or modify causative factors and significantly reduce the potential for mental illness.

I believe this book is essential reading for scholars and lay persons, therapists and patients, and above all, prospective parents. I am pleased that Dr. McKenzie, together with Dr. Wright, has put this valuable work into book form for the benefit of all.

O. Spurgeon English, M.D., Former Professor and Department Chair Emeritus
Temple University, 1934-1993
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