
Mastering Change | The trauma, mental health & wellbeing podcast How childhood trauma causes chronic illness – and how to heal it | Oliver Barnett | #007 Mastering Change
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Mar 25, 2025 Oliver Barnett, a functional medicine practitioner blending somatic therapies with trauma-informed care, explains how childhood trauma can prime the immune system and show up as chronic illness. He discusses nervous system dysregulation, body-held emotion and integrating IFS, somatic work and functional medicine. He also explores prevention through parenting, schools and multidisciplinary care.
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Childhood Trauma Shapes Chronic Illness
- Unresolved childhood trauma shapes biology and often underlies complex chronic illness.
- Oliver Barnett says biography influences biology through nervous system and immune priming.
Blend Somatic Work With Functional Medicine
- Combine functional medicine with somatic therapies like IFS and somatic experiencing for complex cases.
- Oliver recommends blending mind-body inquiry with biochemical treatments for better outcomes.
Attachment Alters Nervous And Immune Systems
- Early attachment and epigenetic transmission alter autonomic nervous system function.
- This nervous system change cascades into biochemical shifts that prime immune dysfunction later.




