Cerebral Blood Flow
Improved blood circulation to the brain delivering more oxygen and nutrients.
TL;DR
Cerebral perfusion falls with age and vascular stiffening and tracks with cognitive performance. Cocoa flavanols and Ginkgo biloba raise measured cerebral blood flow in imaging studies, though downstream cognitive gains are modest.
Why It Matters
Reduced cerebral perfusion precedes cognitive decline by years and is a shared pathway between hypertension, sleep apnea and vascular dementia. Improving flow is a plausible, though unproven, lever for long-term cognitive preservation.
How to Measure
Biomarkers
Optimization Protocol
Treat blood pressure and sleep apnea first. Cocoa flavanols 500-900 mg daily or Ginkgo biloba 120-240 mg standardized extract, taken consistently for 8-12 weeks. Aerobic exercise adds an independent perfusion benefit.
Supporting Supplements
Vitamin C
Vitamin C supports endothelial function generally, with only indirect evidence for cerebral perfusion specifically.
Ginkgo Biloba
Ginkgo reliably increases measured cerebral perfusion; cognitive benefits are smaller and mostly seen in impaired populations.
Supporting Research
Frequently Asked Questions
Typical Timeframe
Acute flow changes within 2 hours; sustained effects at 8-12 weeks
Research Summary
My Notes
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This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.