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Nuances of Postpartum Psychosis — Physiology Over Psychology

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Postpartum psychosis reflects a whole-system physiologic event.

Prevention and treatment should include a whole-system approach.

The whole system extends beyond the body and mind to include the historical and present environment.

The current paradigm invoked to describe postpartum psychosis lacks nuance and is incomplete.

Postpartum psychosis can be understood as the most extreme expression of a nervous system that has become trapped in an unresolved, escalating threat state during one of the greatest physiological transitions of human life. A central premise in this perspective is that all psychology is physiology at its core. Emotions, behaviors, thoughts, perceptions, and beliefs are emergent properties of underlying mitochondrial, cellular, metabolic, endocrinologic, immunologic, and neurologic phenomena.

From this perspective, postpartum psychosis is not fundamentally a disease of thoughts. It is a disorder of whole-system physiology in which the brain begins constructing reality from a body that continues to signal danger after childbirth.

Pregnancy itself represents a progressively increasing physiological burden. As gestation advances, the growing fetus and placenta demand increasing metabolic resources, cardiovascular output, immune adaptation, endocrine regulation, and tissue remodeling. Near term, these demands, burden, and threats to the mother culminate in labor, an intentionally coordinated process characterized by a release of danger-associated peptides, cytokines, purines, prostaglandins, stress hormones, metabolic mobilization, and activation of innate immunity. The maternal organism temporarily shifts into a highly kinetic threat phenotype designed to accomplish delivery and protect both mother and infant.

Delivery removes the fetus and placenta, but it does not immediately remove the maternal threat state. Instead, the mother enters another demanding physiological phase characterized by tissue injury, uterine involution, wound repair, blood loss, pain, immune activation, metabolic depletion, hormonal withdrawal, lactation, and profound sleep disruption. Normally, these processes are followed by threat signaling resolution, a drop in inflammation, metabolic recovery, endocrine........

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