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CSF

·October 29, 2025·8 min read

Your Brain “Zones Out” After Poor Sleep To Clean Itself

New research shows that during moments of lost focus after poor sleep, the brain releases a wave of cerebrospinal fluid (CSF)—the same cleansing process that normally occurs during deep sleep. Using simultaneous EEG and fMRI scans, scientists found that these fluid pulses occur precisely when attention lapses, suggesting the brain is attempting to catch up on missed “housekeeping.”

This image is a lady being given a saliva swab test.

Featured Neurology

·July 23, 2015·9 min read

Early Detection of Alzheimer’s May be Possible With Saliva Test and Other New Tests

Researchers suggest a number of new tests for early diagnosis of Alzheimer's disease, including a saliva test.

A schematic illustrating the anatomical components of the glymphatic clearance pathway.

Featured Neurology

·June 27, 2013·3 min read

Brain’s ‘Garbage Truck’ May Hold Key to Treating Alzheimer’s and Other Disorders

A new study points to a newly discovered system in which the brain removed waste as a potential new tool to treat neurodegenerative disorders.

This photo shows HIV, the AIDS virus (yellow), infecting a human immune cell.

Featured Neurology Open Neuroscience Articles

·March 26, 2015·4 min read

HIV Can Evolve and Replicate in Patient’s Brain Early in the Illness

A new study reports a subset of patients, the HIV virus started to replicate in the brain within the first four months of infection.

Featured Genetics Neurology

·January 3, 2018·4 min read

Genetic Factors that Contribute to Alzheimer’s Identified

Boston University School of Medicine researchers have identified several new genes associated with Alzheimer's disease, including some which may cause functional and structural alterations in the brain. The findings could help to shed light on the processes leading up to the development of the neurodegenerative disease.

Autism Featured Psychology

·March 6, 2017·4 min read

Infant MRIs Show Autism Linked to Increased Cerebrospinal Fluid

Children diagnosed with autism at the age of two had substantially greater amounts of extra axial cerebrospinal fluid at 6 and 12 months. Additionally, the level of increased CSF at 6 months could be correlated with the severity of autism symptoms displayed at 2 years, a new study reports.

Featured Neurology Open Neuroscience Articles

·May 17, 2017·5 min read

Biomarkers That May Predict Cognitive Impairment in Parkinson’s Discovered

Researchers have identified biomarkers that can help predict which patients with Parkinson's disease will suffer from significant cognitive deficits within three years of diagnosis.

This shows the CSF in the brain during sleep

Featured Neuroscience

·November 1, 2019·4 min read

Are we ‘brainwashed’ during sleep?

Study reveals as we sleep, cerebrospinal fluid pulses in the brain in rhythmic patterns.

Featured Neurology Neuroscience

·October 23, 2025·8 min read

Brain’s Waste System Breakdown Linked to Dementia Risk

Researchers have discovered that problems with the brain’s waste-clearing system—the glymphatic system—may significantly raise the risk of developing dementia. In one of the largest studies to date, MRI data from 40,000 adults revealed that impaired cerebrospinal fluid (CSF) flow predicts dementia risk years before symptoms appear.

Featured Neuroscience

·November 10, 2017·5 min read

Exit Through the Lymphatic System

A new study in Nature Communications refutes long standing belief, reporting that cerebrospinal fluid exits the cranial cavity via lymph vessels.

Autism Featured Neuroscience

·May 2, 2018·4 min read

Vasopressin a Possible Biomarker for Social Deficits in ASD

A new study that used rhesus macaques with low levels of sociability revealed the animals had reduced levels of vasopressin in their cerebral spinal fluid, as did children diagnosed with ASD.

Featured Neurology

·July 14, 2020·4 min read

Link Between Delirium and Brain Energy Disruption Discovered

Artificially inducing peripheral inflammation in mice triggered the sudden onset of delirium-like cognitive dysfunction, and this was mediated by a disturbance in energy metabolism.