Revolution Health Radio RHR: Preserving Cognitive Function As You Age, with Tommy Wood
Mar 24, 2026
Tommy Wood, neuroscientist and physician focused on brain health and author of The Stimulated Mind, explains why cognitive decline is not inevitable. He presents his 3S model—stimulus, supply, support—and explores how lifestyle, vascular health, exercise types, sleep, nutrition, and cognitively demanding activities shape lifelong brain resilience.
AI Snips
Chapters
Books
Transcript
Episode notes
Auguste D's Case May Not Have Been Typical Alzheimer's
- Tommy Wood recounts Auguste D, Alzheimer’s index case, likely not typical late-onset Alzheimer’s and possibly neurosyphilis.
- This historical example shows different pathologies can produce similar plaques/tangles under a microscope.
The 3S Model Explains Brain Aging
- Tommy Wood's 3S model groups dementia drivers into Stimulus, Supply, and Support to simplify intervention targets.
- Stimulus = cognitive/social challenge; Supply = blood flow, glucose/ketones, nutrients; Support = sleep, trophic factors, and avoiding chronic inflammation.
Dementia Risk Per Age Is Falling Even As Cases Grow
- Age-specific dementia incidence has fallen across 20th-century birth cohorts despite total cases rising due to population aging.
- Improvements in education, nutrition, and cardiovascular care likely drove lower per-age risk in cohorts born 1920s–1950s.
