What does the research say about cerebrospinal fluid flow?

Cerebrospinal fluid flow

There are 2 papers on cerebrospinal fluid flow in aging research: 2 observational studies in people. The newest story, Nov 13, 2026: “Older adults had weaker brain fluid flow waves during sleep”.

Biomarker

2 papers study it16 more mention it1 finding

1 new paper in 30 daysSee all 18 papers on cerebrospinal fluid flow

“this reduction in CSF flow was associated with gray matter atrophy in aging”

The aging human brain exhibits reduced cerebrospinal fluid flow during sleep due to both neural and vascular factorsbioRxiv : the preprint server for biology2025doi:10.1101/2025.02.22.639649

Humans2

Associations

Gray matter atrophy

downin humans1

1 study

Cerebrospinal fluid flow is associated with gray matter atrophy in humans.
“this reduction in CSF flow was associated with gray matter atrophy in aging”
Humans
The aging human brain exhibits reduced cerebrospinal fluid flow during sleep due to both neural and vascular factors
bioRxiv : the preprint server for biologyFeb 24, 2025Preprint

Funding

1 grant since 2021

National Institute on Aging$1.4M

Sleep-dependent modulation of cerebrospinal fluid flow in aging and across genetic risk for Alzheimers disease
National Institute on AgingBoston University$695K2021–2026

Latest

9 papers in 12 months

Nature AgingNov 13

Older adults had weaker brain fluid flow waves during sleep

Nighttime scans of 31 young and 41 older adults linked reduced fluid flow to weaker waves of brain activity and blood-volume change.Nighttime scans of 31 young and 41 older adults linked reduced fluid flow to weaker waves of brain activity and blood-volume change.

Cross-sectional studySLEEP