Short Wave Mental ‘Workouts’ Could Keep Your Brain Young
39 snips
Nov 17, 2025 Recent research reveals that cognitive training can elevate levels of acetylcholine, a brain chemical that diminishes with age. The discussion features a compelling 10-week study involving older adults, showing a 2.3% increase in acetylcholine linked to cognitive workouts. Participants engaged in focused training rather than casual games, providing insights into effective brain fitness. Experts suggest combining physical and mental exercises for optimal brain health, emphasizing enjoyment and social engagement for lasting benefits.
AI Snips
Chapters
Transcript
Episode notes
Trying The 'Double Decision' Drill
- Regina Barber and Jon Hamilton demoed the 'Double Decision' task, which gets faster and harder as you improve.
- The exercise produced a noticeable mental challenge and 'smoke coming out of your ears' reaction from Regina.
Brain Chemistry Changed By Training
- Cognitive training raised acetylcholine levels in older adults by about 2.3% after 10 weeks of daily 30-minute sessions.
- That increase roughly offsets a decade of age-related decline, which is about 2.5% per decade starting around 40–45.
Role Of Acetylcholine In Aging
- Acetylcholine acts as both a neurotransmitter and neuromodulator that supports decision-making and attention.
- Its levels decline with age and fall dramatically in Alzheimer's disease, linking chemistry to cognitive aging.