Post- Traumatic Growth is the positive psychological change that some individuals experience after a life crisis or traumatic event. Post-traumatic growth doesn’t deny deep distress, but rather posits that adversity can unintentionally yield changes in understanding oneself, others, and the world. Post-traumatic growth can, in fact, co-exist with post-traumatic stress disorder.
Why Does Post-Traumatic Growth Develop?
Understanding what causes post-traumatic growth is essential for prevention and treatment. Research consistently shows that post-traumatic growth arises from a complex interplay of biological, psychological, and social factors — rarely from a single cause.
What Researchers Have Found
Research into post-traumatic growth has identified multiple contributing pathways. Studies using neuroimaging, genetics, and longitudinal data reveal that no single factor fully explains why post-traumatic growth develops.
Biological Factors
Biological contributors to post-traumatic growth include:
- Genetics: Family history increases risk; certain genes influence vulnerability
- Brain chemistry: Neurotransmitter imbalances (serotonin, dopamine, norepinephrine) play key roles
- Brain structure: Differences in the prefrontal cortex, amygdala, and hippocampus are documented
- Physical health: Chronic illness, hormonal changes, and sleep disruption can trigger or worsen post-traumatic growth
Psychological Factors
- Early experiences: Childhood adversity, attachment disruption, and trauma shape psychological vulnerability
- Cognitive patterns: Negative thinking styles, perfectionism, and rumination increase risk
- Coping skills: Limited emotional regulation skills make post-traumatic growth more likely under stress
- Personality: Certain traits (neuroticism, harm avoidance) are associated with higher risk
Social and Environmental Factors
Environmental Influences
The phenomenon was identified by psychologists Richard Tedeschi and Lawrence Calhoun in the 1990s. Based on their research , the pair described five categories of growth that occur over time: Survivors of trauma recognize and embrace new opportunities. They forge stronger relationships with loved ones as well as with victims who suffered in the same way. They cultivate inner strength through the knowledge that they have overcome tremendous hardship. They gain a deeper appreciation for life. And their relationship to religion and spirituality changes and evolves. Life crises are seismic events.
What Triggers an Episode?
Even in people with predisposing factors, post-traumatic growth often requires a triggering event:
- Major life transitions (job loss, relationship breakdown, bereavement)
- Prolonged stress without adequate recovery
- Substance use or withdrawal
- Physical illness or injury
- Social isolation or conflict
Protective Factors
Not everyone with risk factors develops post-traumatic growth. Protective factors include: strong social support, effective coping skills, physical health maintenance, access to care, and psychological resilience built through prior challenges.