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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.

Simple eye test identifies patients suitable for laser blended vision

Laser blended vision is a treatment for presbyopia, the natural deterioration of our ability to see things close up, that develops in people aged 40 and over.

14 Sep 2026

Eye scans detect signs of atrial fibrillation years before diagnosis

People with atrial fibrillation have signs of the condition in the retinas of their eyes that can be detected as early as four years before diagnosis, finds a new study led by University College London (UCL) and Moorfields researchers.

14 Sep 2026

APOE genotype helps p-tau217 predict who may develop cognitive impairment sooner

A pooled analysis of 8,582 adults from seven prospective cohorts found that higher plasma p-tau217 concentrations were associated with greater cognitive impairment risk and earlier progression, with stronger associations among APOE-ε4 carriers. Each 1-SD increase in p-tau217 was associated with a 24% shorter time to cognitive impairment among carriers compared with 13% among non-carriers, suggesting that genetic background can refine the prognostic meaning of this Alzheimer’s disease blood biomarker.

14 Sep 2026

A study of ayahuasca users found a mental health pattern researchers cannot yet explain

In a cross-sectional study of 808 Brazilian adults planning to attend ayahuasca ceremonies, greater prior experience with the brew was associated with lower depression, anxiety, and stress scores, as well as higher spiritual well-being and stronger metaphysical beliefs. Because the study was observational and relied on self-reported data, it cannot show that ayahuasca caused these differences.

13 Sep 2026

Distinct EFEMP1 variants cause different forms of vision loss

Scientists identified a new vision condition linked to a gene already connected to a different vision-loss disease. While the previously identified disease causes loss of central vision, the new condition affects peripheral and night vision.

11 Sep 2026

Rare cortical neurons actively promote the transition into sleep

What makes the brain fall asleep? For nearly a century, scientists have looked to structures deep within the brain for the answer.

11 Sep 2026

Video game offers new insights into autistic perception

People with autism often come at life from a different angle-seeing details others miss, focusing on patterns rather than faces, experiencing heightened or dimmed physical sensations.

11 Sep 2026

Early studies hint that ketones may affect pathways linked to PTSD

An integrative review found that ketogenic therapy may influence metabolic, inflammatory, oxidative stress, and neurotransmitter pathways implicated in PTSD, with animal studies and small human studies reporting early signs of symptom improvement. Human evidence remains limited to very small cohorts, case reports, and pilot studies, and controlled trials have yet to establish clinical efficacy.

11 Sep 2026

People with ADHD face higher odds of gastrointestinal problems

University of Warwick researchers have analyzed data from over 1.9 million people across 23 studies and found that ADHD is linked to an almost 50% increase in overall gastrointestinal symptoms compared with people without ADHD The association was even stronger for specific problems: nearly double the odds of constipation, a 58% increase in irritable bowel syndrome, and more than four times the odds of encopresis (loss of bowel control).

10 Sep 2026

Study uncovers dynamic brain coding during decision-making

A new study by neuroscientists in The Picower Institute for Learning and Memory at MIT shows how the brain encodes information throughout the decision-making process to keep options clearly in mind and to ensure that chosen and unchosen options are remembered.

10 Sep 2026

Brain interference explains why multitasking becomes difficult

Multitasking feels like a required skill in modern life, but as anyone who has tried keeping track of multiple chat windows, an email inbox, and a stream of phone notifications during a video call can tell you, figuring out which messages are important comes at a cost.

10 Sep 2026

Five minutes of coffee aroma was linked to shifts in mood and brain activity

Short-term coffee aroma exposure was followed by reductions in several negative mood measures and an increase in an EEG-derived relaxation index in 20 healthy young adults. Heart rate and HRV did not change significantly, and the uncontrolled study cannot establish that coffee aroma caused the observed responses.

10 Sep 2026

Aging brain actively shapes biology and progression of tumors

Brain tumors develop within an organ that changes substantially with age. A new review in Ageing and Cancer Research & Treatment examines evidence that the aging brain microenvironment may influence brain tumor progression, treatment resistance, and cognitive outcomes.

10 Sep 2026

Study reveals how brain reward circuitry builds psychological resilience

New research has uncovered that how the brain responds to anticipated rewards plays a key role in building psychological resilience after a traumatic experience.

10 Sep 2026

Review highlights solute carriers as targets for central nervous system disorders

Solute carriers (SLCs) are specialized transport proteins that control the movement of nutrients, ions and neurotransmitters across cell membranes and are essential for brain metabolism and neuronal communication.

10 Sep 2026

Rentosertib shifts multiple proteomic aging clocks toward younger age profiles in IPF trial

Researchers applied six proteomic aging clocks to serum samples from a phase 2a trial of rentosertib in people with idiopathic pulmonary fibrosis and found treatment-associated shifts toward younger predicted biological-age profiles, particularly with the 30 mg twice-daily regimen. Additional proteomic analyses linked treatment to changes in senescence, metabolism, growth-factor signaling, and fibrosis-related pathways, although the study could not determine whether these effects reflected genuine geroprotection rather than disease modification.

10 Sep 2026

Bruker advances whole-organism 3D imaging with enhanced tissue-clearing workflows

Bruker Corporation today announced a strategic collaboration with Translucence Biosystems, Inc., a leading provider of tissue‑clearing solutions, to expand its workflow for cleared tissue imaging.

From Bruker Nano Surfaces and Metrology 10 Sep 2026

Dementia prevention should look beyond individual choices, study finds

Efforts to prevent dementia may be placing too much responsibility on people's choices while overlooking the wider social and environmental conditions that shape brain health, according to new Curtin University research published in The Lancet Public Health.

9 Sep 2026

Why researchers are looking at psilocybin for repeated mild head injuries

In female rats with repetitive mild head injury, psilocybin reduced acute imaging measures consistent with vasogenic edema and phosphorylated tau while altering vascular reactivity, functional connectivity, neurotrophic proteins, and lipid signaling. The findings provide preclinical evidence of potential therapeutic effects, but behavioral benefits were limited, and whether these biological changes translate into lasting neurological protection or benefits in humans remains unknown.

9 Sep 2026

Pink noise boosts brain waste clearance during sleep

During the day, waste products such as lactic acid and worn-out proteins build up in the brain. When we sleep at night, waves of cerebrospinal fluid (CSF) help to wash away this waste, keeping the brain healthy.

9 Sep 2026