The School of Greatness

Podbit · The School of Greatness

Neurosurgeon: How to Outthink Fear Under Pressure | Dr. Mark McLaughlin

Explore episode Jul 13, 2026

Where this was said

Brain Optimization: How to Stop Insulting Your Brain

At 48:25 · chapter starts 46:50

Lewis asks what someone can do to optimize their brain through thoughts and actions. McLaughlin's answer begins with subtraction: stop insulting the brain. Alcohol, tobacco, uncontrolled blood pressure, poor oral hygiene, dietary neglect, and contact sports with head strikes are all active insults to the nervous system. Then the additions: regular exercise (which improves memory consolidation and learning), helmets for skiing and cycling, and the deliberate curation of language and habits to move toward goals rather than away from fear. He shares a personal example of breaking his post-emergency-surgery Cheetos habit — two large bags at 2 or 3am, justified as a reward — and replacing it with a glass of water and driving home. Epictetus's line anchors the habit section: habits must first be weakened before they can be destroyed.

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