Research
Energy balance
Cardiovascular health, specifically arterial pulsatility driven by cardiac output, is a mechanical prerequisite for effective glymphatic fluid transport; conditions like hypertension and heart failure reduce this pulsatility, impairing waste clearance and increasing dementia risk.
Maintain cardiovascular health to support the mechanical force (arterial pulsatility) that drives brain waste clearance. Manage blood pressure, treat heart conditions, and stay physically active to ensure your heart pumps effectively, which in turn helps your brain clear out harmful proteins.
GoodSupportsHIGH confidence
We also propose that a healthy cardiovascular system... plays a hitherto unappreciated role in the clearance of neurotoxic waste from the brain... The ejection pressure of blood from the left ventricle is partly absorbed by the elastic arterial wall... Pulses in these large-caliber arteries constantly transmits pressure waves... thereby driving CSF into the neuropil along the periarterial spaces.
Why this rating
Cites studies linking hypertension, heart failure, and arterial stiffness to reduced glymphatic flow in humans and rodents.
Source
Glymphatic failure as a final common pathway to dementia
Maiken Nedergaard et al. · Science · 2020
DOI 10.1126/science.abb8739
narrative_reviewCited 1,025×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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