Summary: Using a compact mathematical rate model of the primary visual cortex, computational neuroscientists demonstrate that two intrinsic feedback mechanisms—fast inhibitory recruitment and slower homeostatic regulation—can constrain chaotic activity and reduce neural variability by about 93%. These results offer a principled framework to resolve a core sensory paradox: how the visual system stays adaptable enough … Read more

Summary: Researchers at the University of California San Diego have identified catestatin (CST), an endogenous peptide fragment, that in preclinical mouse models reduces both amyloid and tau accumulation, suppresses neuroinflammation, and improves cognitive and motor functions. Unlike single-target approaches, CST influences multiple interconnected disease pathways, suggesting a promising peptide-based strategy for complex neurodegenerative disorders such … Read more

Summary: A large observational study of more than 277,000 adults shows that loneliness and social isolation substantially reduce disease-free life expectancy. Men who experienced both social isolation and loneliness lost nearly six years free of major mental health disorders, while women lost almost four years. Although healthy behaviors helped offset some of the physical risks … Read more

Summary: Scientists have developed an artificial intelligence framework that combines a protein language model with a Graph Convolutional Network to predict which short protein fragments (peptides) will taste bitter and to design new sequences from scratch. The approach was validated by trained human sensory panels and offers practical insights into taste perception, with potential to … Read more

Summary: An international research team has developed injectable, hollow semiconducting nanoparticles that function as microscopic light receptors inside degenerated eyes. When illuminated, these particles create a wireless interface that activates surviving retinal nerve cells, prompting visual signals to reach the brain and restoring measurable light responses in animal models of retinitis pigmentosa. Key Facts: Microscopic … Read more

Summary: Researchers have found that cocaine narrows natural, adaptable behavior into compulsive, repetitive routines by targeting an action‑selection circuit in the ventrolateral striatum (VLS). Using a new deep‑learning tracking system called STEREO, the team demonstrated that rebalancing opposing direct and indirect striatal pathways can immediately interrupt drug‑induced stereotyped actions and restore behavioral flexibility. Key Facts: … Read more

Summary: The American Heart Association and the American Headache Society have launched a collaborative research initiative to fund bold, high-risk studies exploring how migraine and other headache disorders contribute to cardiovascular and cerebrovascular decline. Funded projects will investigate whether repeated migraine attacks alter immune activity around cerebral blood vessels, impair brain waste clearance systems, and … Read more

Summary: Researchers at Johns Hopkins used artificial intelligence to analyze chest CT and brain MRI scans and found that lower thoracic vertebral bone mineral density is associated with faster cognitive decline and greater microstructural white matter damage. The results suggest shared systemic metabolic processes that simultaneously weaken bone and accelerate brain aging. Key Facts: Accelerated … Read more

Summary: Contraction of the core abdominal muscles during everyday activities—such as exercise, walking, straining, or coughing—directly affects blood flow in the brain by producing ultrafast constrictions in major cerebral veins. These findings show that cerebral circulation is linked to peripheral mechanical forces, offering new insights into how physical activity benefits brain vascular health and why … Read more

Summary: Researchers at the University of Georgia have identified nearly a dozen genes that enable planarian flatworms to regenerate dopamine-producing neurons and rebuild their brains after injury. This discovery maps the molecular instructions that guide stem cells to become functional dopaminergic neurons and suggests pathways that could inform future regenerative approaches for Parkinson’s disease and … Read more