RHR: Why Microglia Are the Key to Brain Health, with Dr. David Perlmutter

In this episode of Revolution Health Radio, Chris Kresser sits down with renowned neurologist and bestselling author Dr. David Perlmutter to discuss the emerging science of microglia—the brain's immune cells—and why they may hold the key to preventing cognitive decline and Alzheimer's disease. Drawing from his new book, Brain Defenders, Dr. Perlmutter explains how lifestyle factors such as nutrition, exercise, sleep, metabolic health, and gut health influence whether microglia protect the brain or contribute to chronic inflammation and neurodegeneration. Together, they challenge the outdated notion that dementia is largely predetermined by genetics, highlighting growing evidence that proactive lifestyle interventions can preserve—and even improve—brain function throughout life.

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