Brain News and Research

RSS

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.

New research maps neural overlap in insomnia, depression, and anxiety

New research from the Netherlands Institute for Neuroscience maps the similarities and differences between the three most common brain disorders.

3 May 2025

RNA editing enzyme found to trigger neuroinflammation in Parkinson's

Parkinson's disease (PD) is a neurodegenerative disorder in which the α-synuclein protein abnormally aggregates within brain cells, causing neuronal damage.

3 May 2025

Study shows brain estrogen directly regulates appetite in mice

Researchers in Japan found that estrogen produced within the brain, called neuroestrogen, suppresses appetite and reduces body weight in mice by enhancing MC4R expression. The study also showed that neuroestrogen boosts leptin sensitivity, suggesting new targets for obesity treatment.

2 May 2025

Heat triggers sperm activation for fertilization in mammals

In mammals - including us humans - sperm are surprisingly picky about temperature, thriving best in conditions a few degrees cooler than normal body temperature.

2 May 2025

New imaging technique reveals live neural activity in deep brain regions

The communication between the brain and bodily organs is fundamental to emotion regulation and overall mental health.

2 May 2025

Hairlike electrodes offer a new era for comfortable EEG monitoring

The future of electroencephalography (EEG) monitoring may soon look like a strand of hair. In place of the traditional metal electrodes, a web of wires and sticky adhesives, a team of researchers from Penn State created a hairlike device for long-term, non-invasive monitoring of the brain's electrical activity.

2 May 2025

ZIP4 protein identified as driver of glioblastoma aggression

In a study published Wednesday in the Proceedings of the National Academy of Sciences (PNAS), University of Oklahoma researchers detail their discoveries about why the brain tumor glioblastoma is so aggressive.

2 May 2025

COVID-19 leaves longer-lasting symptoms than flu or pneumonia, study finds

A large U.S. cohort study found that post-acute symptoms after COVID-19 vary by initial disease severity, age, sex, and comorbidities. Compared to influenza and pneumonia, long COVID presented with distinct symptom patterns and longer-lasting effects.

1 May 2025

Getting active in midlife may boost brain resilience to Alzheimer’s

In cognitively healthy middle-aged adults at risk for Alzheimer’s disease, becoming physically active, especially in line with WHO guidelines, was linked to lower brain amyloid burden. Remaining sedentary was associated with reduced cortical thickness in brain regions vulnerable to AD.

1 May 2025

Retinal exams show promise for early detection of Parkinson's disease

Could it be possible to diagnose Parkinson's disease with the help of a simple retinal exam? The idea should be seriously considered, according to a study published in the May issue of Neurobiology of Disease by researchers from Université Laval who discovered that the retina of people with Parkinson's disease responds differently to light stimuli than that of healthy people.

1 May 2025

Clinical trial underway to assess effectiveness and safety of potential Long Covid treatment

A clinical trial is underway to assess the effectiveness and safety of sipavibart, AstraZeneca's long-acting monoclonal antibody designed to provide protection against Covid-19, as a potential treatment for Long Covid, the Nova Southeastern University (NSU) and the Schmidt Initiative for Long Covid (SILC) announced today.

1 May 2025

Spatial working memory remains stable in older adults with autistic traits

There is no difference over time in the spatial working memory of older people who have autistic traits and those who are neurotypical, finds a new study led by UCL researchers.

1 May 2025

Caffeine increases brain complexity during sleep and shifts it toward a critical state

Caffeine shifts brain activity during sleep by increasing EEG complexity and reducing long-range temporal correlations, particularly in non-REM (NREM) sleep. These changes reflect a movement toward a “critical regime” of neural processing, more pronounced in younger adults.

1 May 2025

Early detection of primary progressive aphasia through speech and hearing tests

Difficulty finding words or the habit of substituting them with others that are similar semantically – such as knife and cutter – or phonologically – such as knife and wife – are usually the first symptoms of a type of dementia known as primary progressive aphasia (PPA).

30 Apr 2025

TDP-43 dysfunction in brain blood vessels may drive Alzheimer's and ALS progression

Reduced levels of a critical protein are linked to devastating brain diseases like Alzheimer's, frontotemporal dementia, and amyotrophic lateral sclerosis (ALS). Surprisingly, the protein shortage primarily affects the brain's blood vessels.

30 Apr 2025

Study links impaired synaptic pruning to autism

Autism spectrum disorder (ASD) is a complex neurodevelopmental condition in which affected individuals experience difficulties in social communication and exhibit restricted, repetitive patterns of behavior or interests.

30 Apr 2025

High fructose diets impair brain function and appetite control, study shows

Review highlights how excessive fructose intake disrupts brain energy balance, appetite regulation, and cognitive function. Processed sources, such as sugary drinks, may overwhelm metabolic pathways and induce neuroinflammation, particularly during adolescence.

30 Apr 2025

Virtual reality game using scents boosts cognitive function in older adults

As the global population ages, supporting older adults in maintaining their cognitive and memory functions has become a pressing concern.

30 Apr 2025

Digital cognitive assessments may offer a feasible way to screen older adults for dementia

Many adults aged 65 and older never receive a cognitive check during regular primary care visits. This study assessed the feasibility and acceptability of implementing a digital cognitive assessment for Alzheimer disease and related dementias (ADRD) screening into primary care.

30 Apr 2025

Midlife exercise may help lower Alzheimer's risk

An increase in physical activity between the ages of 45 and 65 could help prevent Alzheimer's disease, while inactivity may be detrimental to brain health.

30 Apr 2025