590: The Hidden Driver of Alzheimer’s Disease and How to Protect Your Brain | David Perlmutter, MD

Neurodegenerative diseases like Alzheimer's and Parkinson's share a unifying metabolic mechanism rooted in the disruption of the brain's immune system. Neurologist Dr. David Perlmutter highlights how chronic inflammation, driven by ultra-processed food consumption, poor sleep, and environmental toxins like PM 2.5, forces microglial cells to shift from a supportive state to a destructive one. Protecting cognitive health requires a proactive, multi-faceted approach centered on metabolic optimization. Key levers include regular resistance and aerobic exercise to support mitochondrial health, consistent restorative sleep to activate the glymphatic system, and the avoidance of mitochondrial toxins. Biomarkers such as fasting insulin, A1c, and waist circumference serve as critical indicators of metabolic status. Reversing cognitive decline depends on shifting these lifestyle factors to restore microglial function before symptoms manifest, as these conditions are increasingly understood as preventable metabolic disorders.