Post Traumatic Stress Disorder (PTSD)

About Post Traumatic Stress Disorder (PTSD)

Post-Traumatic Stress Disorder (PTSD) is a psychiatric condition that can develop after experiencing, witnessing, or being repeatedly exposed to a traumatic event involving actual or perceived threats to life, safety, or physical integrity—such as combat, severe accidents, abuse, or natural disasters.

While initial distress following trauma is normal, PTSD occurs when the body's natural "fight-or-flight" response remains activated long after the danger has passed. Clinically, it is characterized by symptoms lasting more than one month that impair daily functioning across four main areas:

Intrusion: Involuntary, distressing memories, nightmares, or vivid flashbacks.

Avoidance: Consciously steering clear of people, places, or thoughts that serve as trauma reminders.

Reactivity: Feeling chronically on guard (hypervigilance), being easily startled, or experiencing heightened irritability and sleep disturbances.

Cognitive & Mood Changes: Persistent negative beliefs about oneself or the world, emotional numbness, or feelings of detachment from others.

Frequency: An estimated 5% of U.S. adults—approximately 13 million people—experience post-traumatic stress disorder (PTSD) in any given year. According to epidemiologic tracking from the U.S. Department of Veterans Affairs (VA) National Center for PTSD and federal datasets, about 6% of the American population (1 in 17 people) will struggle with the disorder at some point during their lifetime.

Gender Differences: Women are twice as likely as men to develop the condition, showing a lifetime prevalence of 8% for women compared to 4% for men. Military veterans experience PTSD at rates substantially higher than the civilian baseline. Data from the National Health and Resilience in Veterans Study (NHRVS) tracks a recent surge, finding a past-month PTSD prevalence of 7% and a lifetime prevalence of 14% across the general veteran population.

Age Differences: In any given twelve-month period, PTSD prevalence among adults peaks sharply in midlife (aged 45 to 59) at 5% before dropping to its lowest level of 1% among those 60 and older. Meanwhile, youth aged 13 to 18 carry a 5% lifetime prevalence, with adolescent girls experiencing a significantly higher rate (8%) than boys (2%).

Types and classifications

• Traditional Western medicine views PTSD as a psychiatric disorder using standardized symptom clusters for classification. The main types of PTSD are characterized by distinct triggers, durations, and symptoms:
• Uncomplicated PTSD: Triggered by a single, distinct traumatic event (such as an accident, natural disaster, or assault). It involves core symptoms like nightmares, flashbacks, avoidance, and mood changes.
• Complex PTSD (C-PTSD): Results from prolonged or repeated trauma over months or years (such as childhood abuse, human trafficking, or domestic violence). In addition to standard PTSD symptoms, it causes severe issues with emotional regulation, self-image, and relationship building.
• Dissociative PTSD: Characterized by "depersonalization" or "derealization". Individuals feel completely disconnected from their own body or mind, as if they are watching themselves from the outside or living in a dream-like state.
• PTSD with Delayed Expression (Delayed-Onset): Symptoms do not meet the full diagnostic criteria until at least six months—or sometimes years—after the traumatic event has taken place.
• Acute Stress Disorder (ASD): Occurs soon after a traumatic event. It features similar symptoms to PTSD, but the duration is much shorter, lasting anywhere from three days to one month.
• Functional medicine and functional neurology treat PTSD as a systemic, software-like dysfunction of the nervous system where the brain's fear response miscommunicates with logical control. While functional medicine targets root-cause biochemistry—such as gut-brain health, HPA-axis stress response, and systemic imbalances—functional neurology focuses on retraining miscommunicating brain networks through targeted sensory and physical rehabilitation techniques like amygdala retraining, neurofeedback, and targeted sensory stimulation.
• Hyper-Arousal / Sympathetic Dominance States: Defined by an overactive amygdala (the brain's threat detector) that fails to return to baseline, resulting in constant high alertness, anxiety, and exaggerated startle reflexes.
• Disconnection / Frontal Inhibition Failure: Characterized by an under-engaged or hypoactive prefrontal cortex, which strips the brain of its ability to rationally regulate emotions, calm the limbic system, or inhibit inappropriate fear responses.
• Contextual Memory Deficits (Hippocampal Dysfunction): Linked to physical or functional shrinkage and reduced plasticity in the hippocampus, which prevents a person from properly contextualizing past memories versus present safety, causing old triggers to feel like active, current life threats.
• Systemic / Metabolic Overload: Functional medicine practitioners additionally look at systemic inflammation, gut-brain axis disruption, and exhausted hypothalamic-pituitary-adrenal (HPA) axis output, viewing chronic trauma symptoms as an entangled whole-body physical response

Symptoms associated in the NPA database

The NPA Treatment Database groups the following symptom information with Post Traumatic Stress Disorder (PTSD). This list is educational and is not a diagnostic checklist.

Treatment information in the database

The NPA Treatment Database lists 23 treatment records in connection with Post Traumatic Stress Disorder (PTSD). A database relationship does not establish that a treatment is effective, safe, or appropriate for any individual.

• Amen Clinics
• Amygdala / Limbic Retraining
• Breathwork
• Cognitive Behavioral Therapy (CBT)
• Dance & Movement Therapy
• Dialectical Behavior Therapy (DBT)
• Dynamic Neural Retraining System (DNRS)
• Eye Movement Desensitization and Reprocessing (EMDR)
• Havening Therapy
• HeartMath
• HRV Biofeedback / HeartMath
• Ketamine / Ketamine-Assisted Therapy
• Meditation / Mindfulness
• Metacognitive Therapy (MCT)
• Mindset Reframing
• Primal Trust
• Prism (GrayMatters Health)
• Psychedelic Assisted Therapy (psilocybin, MDMA-assisted therapy in research settings)
• Safe and Sound Protocol (SSP)
• Somatic Experiencing
• Transcranial Magnetic Stimulation (TMS)
• Virtual Reality (VR) Therapy
• Yoga

Related questions

These controlled question pages use the same stored condition and treatment relationships.

• What treatments are listed for Post Traumatic Stress Disorder (PTSD) in the NPA database?

Recommended reading listed by NPA

These titles come from the current NPA condition record. Structured citation details are not yet available.

• The Body Keeps the Score: Brain, Mind, and Body in the Healing of Trauma by Bessel van der Kolk, M.D. — Explains how trauma reshapes the brain and body and presents body-based and neuroplastic approaches to healing.
• The Brain's Way of Healing: Remarkable Discoveries and Recoveries from the Frontiers of Neuroplasticity by Norman Doidge — Shows how light, sound, vibration, and movement can awaken the brain's self-healing capacities after injury and illness.
• The Pocket Guide to the Polyvagal Theory: The Transformative Power of Feeling Safe by Stephen W. Porges — A concise introduction to how the autonomic nervous system shapes feelings of safety, connection, and recovery.
• Trauma and Recovery: The Aftermath of Violence—From Domestic Abuse to Political Terror by Judith L. Herman, M.D. — The classic text that defined complex PTSD and outlined stages of recovery from interpersonal trauma.
• Waking the Tiger: Healing Trauma by Peter A. Levine, PhD — Introduces Somatic Experiencing, showing how the body can complete thwarted survival responses and release trauma.