A recent NIH-funded study has discovered rhythmic expansions and contractions in the blood vessels of the cortex in awake mice.

These waves occur every ten seconds, aiding in mixing fluid around brain cells for waste removal and maintaining brain health.

This phenomenon operates independently of brain activity.

The findings could impact the interpretation of fMRI scans and understanding of neurological disorders.

The research, visualized in awake mice, aims to advance knowledge of the brain and nervous system.

Published in the journal Neuron, the study highlights the crucial functions of the intricate vascular network in the brain.