PTSD development
PTSD develops in roughly 1 in 3 exposed individuals, with the majority naturally recovering over time.
Widom 1999 · Am J PsychiatryThis page discusses trauma and its effects. If you need support now:
Not a therapist? Family Clinician
Open traumarootsFor therapists
traumaroots maps what happened across generations, so a session can start from the whole picture, together in real time.
For therapists, families and clinicians. Start with your own family, or bring a map into a session.
The evidence
Population studies link cumulative childhood adversity to mental and physical health outcomes in a graded pattern. Every figure below carries the study it comes from.
PTSD develops in roughly 1 in 3 exposed individuals, with the majority naturally recovering over time.
Widom 1999 · Am J PsychiatryIndividuals with 4 or more Adverse Childhood Experiences (ACEs) show an adjusted odds ratio of 5.3 for depression.
Merrick 2019 · MMWRAustralians with a history of maltreatment show an odds ratio of 3.14 for developing anxiety disorders.
ACMS 2023 · Med J AustSubstance use problems are 7 to 10 times more likely in individuals reporting 5 or more ACEs.
Dube 2003 · PediatricsThe odds ratio for suicide attempts rises to 31.1 in those experiencing 7 or more ACEs.
Dube 2001 · JAMAWhile trauma profoundly impacts health, resilience and healing remain the most common long-term outcomes.
Widom 1999These figures describe population-level associations, not a prediction about any one person.
Physical health
Adversity is not only a psychiatric history item. The same stress physiology is associated with physical health across the lifespan.
Increased lifetime risk of ischemic heart disease linked to early adversity (Felitti 1998).
Higher odds of chronic obstructive pulmonary disease in adults with four or more ACEs (Merrick 2019).
Higher risk of hospitalisation for autoimmune disease, rising with the number of ACEs (Dube 2009).
People with six or more ACEs died nearly 20 years earlier on average than people with none (Brown 2009).
Early, small studies suggest stress responses may be shaped across generations. Understanding family history provides crucial context for current presentations.
Treat intergenerational findings as clinical context, not deterministic prediction. The causality is still an active research area.
In the therapy room
Collaboratively document family history during sessions. Visualizing the genogram together helps externalize patterns and reduces clinical distance.
Automated layout and relationship tagging reveal recurring themes: abuse links, medical histories and emotional trends that were previously hidden in notes.
Secure clinical notation that separates client-visible data from private therapeutic observations. Access is scoped to the people you invite.

Sessions start from the whole picture.
Collaboration
traumaroots is built for connection. Work together across screens, locations and roles.
Guide the client through their history live in session. Edits appear instantly on both devices, building a genuinely shared understanding.
With client consent, invite a family member to join a session remotely to contribute specific generational details or perspectives.
Consult with other specialists or clinicians by sharing a secure view of the casefile, supporting continuity of care across disciplines.