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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.

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

Early B-cell therapy linked to better MS disease control

For people recently diagnosed with multiple sclerosis (MS), early treatment choices were associated with only slight differences after two years, based on the first treatment they used, according to a study published September 9, 2026, in Neurology Open Access, an official journal of the American Academy of Neurology.

9 Sep 2026

Technological roadmap proposed for lifetime brain-wide neural recordings

Understanding the brain requires tools that can follow neural activity across many scales: from millisecond electrical spikes in individual neurons to brain-wide circuit dynamics that change over months, years, and even a lifetime.

9 Sep 2026

Gut infection leaves long-lasting immune ‘memories’ at the brain’s borders in mice

In mice, intestinal infections reshaped dural CD4+ T-cell populations and seeded the brain’s outer meningeal border with antigen-specific memory cells that persisted for months and mounted rapid recall responses to bloodborne antigens. Oral priming was associated with reduced Salmonella spread to the brain and modest cross-protection in an engineered shared-antigen Candida model, although the researchers could not definitively prove that dural CD4+ T cells alone caused the protection.

9 Sep 2026

Caloric restriction reduces genetic mutations across the mouse genome

Mutations are changes in the molecular "letters" that make up DNA, the genetic blueprint for cells. Mutations build up with age in every cell when DNA is damaged or when cells make mistakes in fixing or copying it.

9 Sep 2026

Laser-carved microvalves prevent hazardous backflow in medical microcatheters

A single cough, deep breath, or shift in posture can turn life-saving medical microcatheters into hazardous two-way streets.

9 Sep 2026

Ten minutes of slow running boosts brain function and mood

A growing body of evidence shows that exercise improves mood and cognitive function. However, much of this evidence comes from cycling, which allows researchers to precisely control exercise intensity in the laboratory.

9 Sep 2026

New blood screening algorithm reduces unnecessary Alzheimer's PET scans

A new blood-based screening algorithm dramatically reduced the number of unnecessary PET scans needed to recruit patients at risk of Alzheimer's disease for a clinical trial, according to research from scientists at the Keck School of Medicine of USC published in Alzheimer's & Dementia: The Journal of the Alzheimer's Association.

9 Sep 2026