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medicine

·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 Neurology Neuroscience

·October 23, 2025·7 min read

Poor Oral Health Linked to Brain Damage Markers

A new study finds that older adults with gum disease are more likely to show signs of white matter damage in the brain — a change tied to memory decline, balance issues, and higher stroke risk. MRI scans revealed that participants with gum disease had significantly more white matter hyperintensities than those without, even after accounting for age and other health factors.

Featured Neurology Neuroscience

·October 22, 2025·8 min read

Oral Bacteria May Drive Multiple Sclerosis

Scientists have found that people with multiple sclerosis (MS) have a distinctly imbalanced oral microbiome—marked by a loss of beneficial bacteria and a rise in inflammation-linked microbes. Using advanced genetic and metabolic profiling, researchers revealed that saliva from MS patients also had lower levels of hypotaurine, a molecule that supports antioxidant defense and nerve health.

Featured Genetics Neurology Neuroscience

·October 22, 2025·8 min read

New AI Tool Reveals Genetic Link Between Memory Cells and Alzheimer’s

A new computational tool developed by researchers has uncovered genetic evidence directly linking Alzheimer’s disease to the loss of memory-making neurons, helping to resolve a decades-long mystery in dementia research. The algorithm, called seismic, matches genetic data to individual cell types, outperforming previous methods and highlighting how specific brain cells—not just immune cells—are implicated in Alzheimer’s.

Featured Neuroscience Psychology

·October 22, 2025·8 min read

Ketamine Fails to Outperform Placebo in Major Depression Trial

A large randomized and blinded clinical trial has found no additional benefit of repeated ketamine infusions over standard inpatient care for treating major depression. The study compared ketamine with a psychoactive placebo and found no meaningful differences in objective or self-reported depression scores, cognition, or quality of life.

Featured Neurology Neuroscience

·October 21, 2025·8 min read

Long-Term Keto Diet May Damage Your Body

A new study reveals that while the ketogenic diet can prevent weight gain, it may cause severe long-term metabolic problems. Researchers found that mice on a long-term keto diet developed fatty liver disease and impaired blood sugar regulation due to stressed pancreatic cells.

Featured Neuroscience Psychology

·October 21, 2025·8 min read

Hearing Voices May Stem from the Brain Misreading Its Own Inner Speech

A new study reveals that auditory hallucinations in schizophrenia may arise when the brain fails to recognize its own inner voice as self-generated. Normally, the brain predicts the sound of one’s inner speech and dampens auditory responses accordingly, but this prediction breaks down in people who hear voices.

Featured Neuroscience Psychology

·October 21, 2025·6 min read

When a Hug Turns Dark: How Manipulative Partners Use Touch

Touch can strengthen bonds and calm stress, but not all affection is sincere. A new study reveals that people with “dark triad” traits—narcissism, psychopathy, and Machiavellianism—often use physical touch to control or manipulate their romantic partners.

This shows the outline of two heads and brains.

Featured Neuroscience

·October 21, 2025·5 min read

Tobacco and Cannabis Together Alter Brain’s “Bliss Molecule” System

People who use both cannabis and tobacco show unique brain chemistry linked to higher anxiety, depression, and difficulty quitting. Brain scans revealed increased levels of FAAH, an enzyme that breaks down the brain’s “bliss molecule,” anandamide.

Featured Neurology Neuroscience

·October 20, 2025·6 min read

First Signs of Multiple Sclerosis Found Years Before Symptoms

Researchers have traced the earliest stages of multiple sclerosis (MS), showing that the immune system begins attacking the brain up to seven years before diagnosis. By analyzing over 5,000 blood proteins, they identified molecular signs of damage to myelin—the protective sheath around nerve fibers—long before symptoms emerge.

Featured Neuroscience Visual Neuroscience

·October 20, 2025·10 min read

Electronic Eye Implant Restores Reading Vision in AMD

A groundbreaking European trial has shown that a new electronic eye implant, paired with augmented-reality glasses, can restore reading vision to patients blinded by geographic atrophy from dry age-related macular degeneration (AMD). The device, called the PRIMA System, enabled 84% of participants to read letters, numbers, and words through previously sightless eyes.

Featured Neurology Neuroscience

·October 17, 2025·6 min read

Can a Disconnected Brain Be Conscious?

A new study reveals that sleep-like slow-wave brain activity can persist for years in surgically disconnected brain hemispheres of awake epilepsy patients. Using EEG recordings, researchers found that the isolated cortex exhibits patterns similar to deep sleep, anesthesia, or vegetative states—suggesting absent or reduced awareness.