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The human brain is the center of the human nervous system and is a highly complex organ. Enclosed in the cranium, it has the same general structure as the brains of other mammals, but is over three times as large as the brain of a typical mammal with an equivalent body size.

Impaired spatial orientation found in older adults at risk for Alzheimer’s disease

Individuals with an increased risk for dementia due to Alzheimer's disease can have impaired spatial orientation skills.

3 Sep 2025

Genetic variant disrupts brain’s cleanup crew increasing Alzheimer’s risk

A Nature study published today and led by researchers at the University of South Florida's USF Health Byrd Alzheimer's Institute pinpoints how a genetic variant disrupts microglia - the brain's "cleanup crew" - increasing the risk of Alzheimer's disease.

3 Sep 2025

Long-term benzodiazepine use linked to poor sleep quality in older adults

Long-term use of benzodiazepine and related drugs has been linked to poorer quality sleep in older adults with insomnia.

3 Sep 2025

Sugar-coated nanoparticles offer new hope for treating triple-negative breast cancer

Triple-negative breast cancer is particularly aggressive and difficult to treat; but recent research may offer a new way to target the often-deadly disease.

3 Sep 2025

First complete brain activity map reveals how decisions are made

The first complete activity map of the brain has been unveiled by a large international collaboration of neuroscientists.

3 Sep 2025

Chronic stress and fatty diet disrupt brain-liver circuit leading to diabetes

This study discovered a circuit in the brain that connects stress with increased glucose and therefore may link stress to type 2 diabetes. In stressful situations, this circuit from the amygdala to the liver naturally provides a burst of energy.

3 Sep 2025

Playing joyful music helps ease motion sickness symptoms

Scientists studying ways of improving motion sickness have found that playing different types of music may help people recover more effectively.

3 Sep 2025

Epigenomic erosion linked to cognitive decline in Alzheimer’s patients

Most people recognize Alzheimer's from its devastating symptoms such as memory loss, while new drugs target pathological aspects of disease manifestations, such as plaques of amyloid proteins.

2 Sep 2025

New neurochemical signature distinguishes Parkinson’s disease from essential tremor

Researchers have identified a neurochemical signature that sets Parkinson's disease apart from essential tremor - two of the most common movement disorders, but each linked to distinct changes in the brain.

2 Sep 2025

New insights into early brain circuit breakdown in Alzheimer’s

One of the first parts of the brain affected by Alzheimer's disease is the entorhinal cortex - a region that plays a big role in memory, spatial navigation, and the brain's internal mapping system.

2 Sep 2025

Research reveals molecular details of ME/CFS and long COVID

Patients with chronic fatigue syndrome/myalgic encephalomyelitis (ME/CFS) have heightened innate immune responses to bacteria, viruses, and fungi. While these responses are essential to fight infection, they can cause damage when unchecked.

1 Sep 2025

Depressive symptoms may interfere with learning to actively avoid unpleasant events

Depression alters how people pursue rewards, but, conversely, whether depressive symptoms influence how people learn to avoid nonrewarding, unpleasant events is less clear.

1 Sep 2025

Brain pulsations driving glymphatic function differ in narcolepsy patients and healthy individuals

A hormone produced by the brain, orexin, may play a central role in the functioning of the brain’s glymphatic system, which clears waste, according to a new study from the University of Oulu.

1 Sep 2025

Glutamate receptors found to drive pediatric brain tumor development

The most common type of brain tumor in children, pilocytic astrocytoma (PA), accounts for about 15% of all pediatric brain tumors.

1 Sep 2025

Artificial intelligence offers individualized anticoagulation decisions for atrial fibrillation

Mount Sinai researchers developed an AI model to make individualized treatment recommendations for atrial fibrillation (AF) patients-helping clinicians accurately decide whether or not to treat them with anticoagulants (blood thinner medications) to prevent stroke, which is currently the standard treatment course in this patient population.

1 Sep 2025

Can honey protect your brain? Study reviews its potential against Alzheimer's

This review examined 27 preclinical studies on honey and Alzheimer’s disease, showing honey’s bioactive compounds counter oxidative stress, inflammation, and amyloid buildup. Despite promising lab results, no human trials exist, underscoring the need for clinical research.

1 Sep 2025

Why metformin could protect the brain by rewiring mitochondria

Metformin boosts human oligodendrocyte differentiation and myelination across stem-cell, organoid, and chimera models. The study links these effects to mitochondrial metabolic shifts, supporting its potential as a therapy for multiple sclerosis.

1 Sep 2025

Cancer-related nerve injury triggers inflammation and immunotherapy resistance

Cancer cells can break down the protective covers around nerves, causing nerve injury that triggers chronic inflammation leading to immune exhaustion and eventual resistance to immunotherapy, according to new research from The University of Texas MD Anderson Cancer Center.

1 Sep 2025

KRISS develops ultra-sensitive platform to detect Alzheimer’s biomarkers in body fluids

The Korea Research Institute of Standards and Science (KRISS, President Lee Ho Seong) has developed a diagnostic platform that amplifies the unique optical signals of molecules by more than a hundred million times, enabling the precise detection and quantification of trace amounts of Alzheimer's disease biomarkers in body fluids.

1 Sep 2025

How plant compounds could target Alzheimer’s disease from multiple angles

This review highlights how dietary polyphenols modulate Alzheimer’s disease biology through antioxidant, anti-inflammatory, and multi-target mechanisms, supported by in-silico docking analyses. Despite promise, challenges in bioavailability and brain delivery remain key hurdles to clinical translation.

31 Aug 2025