Summary: Scientists have identified a specific subpopulation of epinephrine-producing neurons, called C1 neurons, that act as powerful drivers of fear and persistent anxiety. Under normal conditions, these cells issue a short-lived alarm during intense stress. The new study shows that prolonged, intense activation of this pathway can lock a downstream stress center into a prolonged … Read more

Summary: Researchers have shown that the human brain processes very low-frequency sound—known as infrasound—through a distinct biological pathway. When acoustic waves fall below the range that ordinary auditory hair cells can transduce, the mechanical energy bypasses those sensory cells and instead activates the cochlea’s structural support cells. These support cells produce alternative electrical potentials that … Read more

Summary: A recent study from the University of Freiburg shows that randomly timed sounds played during sleep can actively impair memory consolidation. Using real-time electroencephalography (EEG), researchers found that brief ambient clicks disturb deep slow-wave sleep, blocking the physical propagation of slow brain waves across the cortex and breaking the information transfer necessary for forming … Read more

Summary: Researchers have released a new suite of clinical resources—a concise practical guide and a short documentary film—designed to improve how professionals, families, and communities respond when people report hearing voices, including voices that relate to suicide. The project shows that, for many, hearing voices can be an adaptive response to overwhelming psychological distress rather … Read more

Summary: Recent evidence shows that astrocytes—long considered passive support cells—play an active, central role in neural circuitry and emotional regulation. Researchers mapped cellular mechanisms that convert healthy astrocytes into neurotoxic phenotypes and identified these glial changes as a core driver of overlapping psychiatric symptoms and instability in brain networks linked to mood disorders. Key Facts … Read more

Summary: Researchers have shown that losing normal TDP-43 function specifically in microglia disrupts brain development. Without TDP-43, microglia experience a collapse of the TREM2–DAP12 signaling pathway and can no longer clear routine myelin errors produced during early wiring. This breakdown of neuro-immune housekeeping damages oligodendrocytes, impairs myelin integrity, and produces lasting motor deficits in adult … Read more

Summary: New research examined the corticostriatal circuit — a key neural pathway that supports decision-making, goal-directed actions, and behavioral flexibility — and found that alcohol interacts with Alzheimer’s-related pathologies in unexpectedly different ways. In animal models that isolate amyloid-beta pathology, alcohol sharply reduced communication across this circuit. In models dominated by tau pathology, the same … Read more

Summary: Researchers report that a ketogenic diet—which shifts the body from glucose toward fat-derived ketones for fuel—produced rapid metabolic benefits and notable improvements in persistent psychiatric symptoms. By bypassing impaired glucose pathways, the intervention restored brain energy availability and produced measurable gains in metabolic health, cognition, and mood without major adverse effects. This randomized controlled … Read more

Summary: An international research team developed a postage-stamp-sized electrochemical sensor made from laser-patterned graphene to measure dopamine noninvasively in tear fluid. Engineered to analyze biological fluids without invasive procedures, the device accurately identified precise dopamine concentrations in artificial human tears, demonstrating potential for rapid, point-of-care screening for neurodegenerative disorders such as Parkinson’s disease. Key Facts … Read more

Summary: A pooled analysis of 26 international studies reveals a consistent association between long-term exposure to ambient fine particulate air pollution and an increased risk of Parkinson’s disease. The evidence indicates that chronic exposure to PM2.5 and PM10 elevates the relative risk of developing Parkinson’s, likely through mechanisms involving oxidative stress and neuroinflammation that damage … Read more