The Neuro Experience

I Asked a Neuroscientist How to Avoid Dementia. His Answer Changed Everything | Dr. Tommy Wood

21 snips
Dec 30, 2025
In a captivating chat, Dr. Tommy Wood—a neuroscientist and author—reveals that much of cognitive decline is optional. He debunks myths about aging, emphasizing that personal trajectory matters more than averages. The 3S Model for Brain Health highlights the importance of stimulus, supply, and support. Intriguingly, he explains how retirement can hasten cognitive decline by 40%. Dr. Wood also warns that self-criticism raises dementia risk. Discover how small, strategic lifestyle changes can help keep your brain performing at its best!
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INSIGHT

Cognitive Decline Is Largely Modifiable

  • Most people have far more control over cognitive decline than they realize.
  • Average population decline is driven by a minority with severe deterioration, not most people.
ADVICE

Supplement Smartly—Test Before You Top Up

  • Prioritise basic nutrient supplements only when blood tests show deficiency.
  • Focus first on lifestyle changes like sleep, nutrition and exercise rather than exotic nootropics.
INSIGHT

Cognitive Tradeoffs From Stimulants

  • Stimulants can improve simple reaction time but impair complex decision-making.
  • Improving one cognitive domain can come at the expense of another.
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