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What if depression and anxiety are not just disorders of the brain, but conditions shaped by the entire body?
In this episode of Research Renaissance, host Deborah Westphal speaks with Dr. Scott Russo, Director of the Brain Body Research Institute at Mount Sinai, about a major shift underway in mental health science. His work challenges the long-standing brain-only model of psychiatric illness and explores how inflammation, immune signaling, and organ systems interact with the brain to shape mood, resilience, and disease risk.
From gut health to traumatic injury, this conversation reveals why mental health research is moving toward an integrative “systems biology” approach that could redefine treatment in the next decade.
Key Takeaways
- Mental illnesses often coexist with medical conditions, suggesting they are whole-body disorders rather than isolated brain diseases.
- Chronic inflammation may be a shared biological driver across conditions ranging from depression to cardiovascular disease.
- Signals from peripheral organs can influence emotional states, meaning some emotions may originate in the body before being processed by the brain.
- Environmental exposures, infections, and life experiences may account for the majority of mental health risk, with genetics contributing a smaller portion.
- Emerging therapies may target immune pathways or body-brain signaling rather than neurotransmitters alone.
- Collaboration across disciplines is essential to advancing mental health research, yet institutional silos still limit innovation.
About the Guest
Dr. Scott Russo is Director of the Brain Body Research Institute at the Icahn School of Medicine at Mount Sinai. His work focuses on understanding how immune, metabolic, and neural systems interact to influence psychiatric disorders and resilience.
Resources & Mentions
- Brain-Body Research Institute at Mount Sinai
- Research on inflammation and psychiatric disease
- Advances in vagus nerve stimulation therapies
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Technical Podcast Support by Jon Keur at Wayfare Recording Co.
