The Next Big Idea Daily How to Build a Resilient Brain
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Aug 31, 2026 
Neurologist David Perlmutter, author of Grain Brain and Brain Defenders, explores microglia, mitochondria, inflammation, and how everyday habits shape long-term brain health. Psychiatrist and Harvard neuroscientist Carl Marci, author of Rewired, examines smartphones, social media, attention, relationships, and digital addiction. Together, they reveal the forces that strengthen or strain the brain across a lifetime.
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You Help Architect Your Brain’s Destiny
- Genes influence brain-health risk, but daily behavior helps determine how those genes are expressed.
- Food, sleep, movement, stress management, toxins, and social connection accumulate into long-term resilience.
Your Brain’s Immune Cells Can Turn Destructive
- Microglia protect neurons by clearing debris and refining connections, but chronic activation makes them release damaging inflammatory chemicals.
- Exercise, sleep, fiber, stable blood sugar, social engagement, and nature encourage their protective role.
Start Preventing Neurodegeneration Before Symptoms
- Treat brain health as a decades-long prevention project rather than waiting for memory loss or tremors.
- Lower inflammation and improve metabolic health while there is still time to influence disease trajectories.
