Performance People

Is AI Making You Less Intelligent? | Neuroscientist Dr. Tommy Wood

4 snips
Mar 3, 2026
Dr. Tommy Wood, neuroscientist and author of The Stimulated Mind who advises elite athletes including Formula 1 teams, breaks down brain training and dementia prevention. He explores why many dementias may be preventable. He explains how exercise, recovery, multitasking limits, social media dopamine, and AI affect cognitive capacity. He shares the 3S Model—Stimulus, Supply, Support—for sharper brains at any age.
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INSIGHT

Brain Adaptation Happens In Recovery

  • The brain needs both stimulus and recovery; adaptation occurs during rest and sleep.
  • Tommy Wood compares brain training to muscles: stimulus (challenge) then recovery (sleep) for lasting change.
INSIGHT

Multitasking Is Sequential Task Switching

  • Humans cannot truly multitask; what looks like multitasking is sequential task switching with attentional costs.
  • Tommy Wood cites processing limits (~10 bits/sec) and attentional residue reducing focus and memory.
ADVICE

Curate Social Media And Use It As A Short Break

  • Curate your social feeds and use short, bounded breaks to recover rather than endless scrolling.
  • Tommy Wood recommends brief comedy clips as effective micro‑breaks and avoiding emotionally loaded feeds that drive dopamine swings.
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