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Deep sleep brain activity helps mice resist social stress

Most adult sleep is non-rapid eye movement (REM), which is restorative and promotes resilience to stressful conditions. However, the brain mechanisms for non-REM sleep's relationship to stress resilience remain unclear.

7 Sep 2026

Inhibitory neurons act as a brake on brain tumor growth

Brain tumors do not grow in isolation. They develop within the highly active environment of the brain, where neurons continuously exchange electrical and chemical signals.

7 Sep 2026

Scientists traced a hidden immune route that may worsen tau-linked brain damage

In a mouse model of tauopathy, conventional type 1 dendritic cells (cDC1s) cross-presented brain-derived antigens in deep cervical lymph nodes, priming CD8+ T cells that accumulated in the brain and promoted neurodegeneration. Disrupting cDC1s or their cross-presentation activity reduced CD8+ T-cell infiltration and protected against neuronal loss, while human primary tauopathy samples also showed increased brain CD8+ T cells, although cDC1 involvement in humans remains unconfirmed.

6 Sep 2026

JMIR Publications: Emerging health tech trends

JMIR Publications released three feature News and Perspectives articles this week, covering an emerging application of drone delivery, the implications of AI tools used in early education, the nascent field of cancer neurotech, and the future of consumer wearable devices.

4 Sep 2026

Younger and older brains respond differently to traumatic injury

Conventional wisdom holds that younger brains are better equipped to recover from injury. Their greater flexibility allows them to adapt, rebuild connections and compensate for damage in ways older brains often cannot.

4 Sep 2026

Crucial brain stem cells rely on metabolic pathways to make decisions

As the human brain takes shape before birth, a remarkable type of stem cell helps give it many of the features that make it distinctly human.

4 Sep 2026

Submicron IR map of the human cell: Label free cellular imaging with O-PTIR, FTIR and Raman

What if you could map the chemistry inside a human cell - without fluorescent labels or stains?

From Photothermal Spectroscopy Corp 4 Sep 2026

What your gut microbes may have to do with how your brain ages

This review examines how diet-driven changes in the gut microbiota and microbial metabolites may influence cognitive aging through immune, metabolic, neural, endocrine, and barrier-related pathways. It highlights SCFAs, tryptophan-derived metabolites, and bile acids as key signaling mediators while emphasizing that much of the mechanistic evidence remains preclinical and human evidence is largely associative.

3 Sep 2026

Cancer drug eliminates HIV-infected cells in animal model study

Emory University researchers have provided the first proof-of-concept in a nonhuman primate model for eliminating HIV-infected cells with venetoclax, a clinically approved medication for cancer.

3 Sep 2026

Brain-protecting immune cells may actually drive Alzheimer's disease

Immune cells that normally protect the body from damage by attacking foreign or infected cells are found in the brains of patients with Alzheimer's disease and related disorders at much higher levels than in healthy brains.

3 Sep 2026

Neural networks reveal how training shapes learning in living brains

A new study has used a type of machine learning called a neural network to reveal how different kinds of training can change how learning happens-both in machines, and in living brains.

3 Sep 2026

Immigrants face longer ICU stays after stroke in Canada

Among people who have a stroke in Canada, immigrants were admitted to the intensive care unit (ICU) at similar rates as long-term residents or people who were born in Canada, but they were more likely to have longer stays in the ICU, according to a study published September 2, 2026, in Neurology, the medical journal of the American Academy of Neurology.

2 Sep 2026

New brain map shows how electric fish manage noise

The brain cells help an African fish decode electric signals to spot prey, scan its murky surroundings and communicate with its fellows.

2 Sep 2026

Bridging science and family story to understand schizophrenia origins

Twin studies have placed the heritability of schizophrenia at roughly eighty percent for decades. Concordance between identical twins, who share the entire genome, does not reach fifty percent. Both figures are well established, and they do not fit together comfortably.

2 Sep 2026

Researchers discover dozens of genes tied to OCD and tic disorders

A Rutgers-led international collaboration has identified 36 genes that substantially raise the risk for obsessive-compulsive disorder (OCD) and chronic tic disorders – providing what two researchers said is the most detailed biological understanding of how these conditions develop – and how they might eventually be treated.

2 Sep 2026