Summary: Spending time in nature does more than feel good—it produces measurable physiological and neural changes that act like a reset for the brain. A comprehensive review of over 100 brain-imaging studies shows that connecting with natural environments shifts brain activity toward restoration, relaxation, and lower stress. Drawing together decades of research across imaging methods … Read more

Summary: Since generative AI entered public consciousness, many headlines have focused on fears that a hypothetical superintelligent system could threaten humanity. New research from the Georgia Institute of Technology suggests those concerns are overstated. The study argues that AI’s limits are shaped by social, political, and physical constraints and that practical policymaking should focus on … Read more

Summary: Patients with recurrent high-grade astrocytoma — an aggressive and often fatal form of brain cancer — historically face a median survival of roughly four to five months. A new Phase 1/2b clinical trial, however, reports a dramatic improvement in outcomes by combining laser interstitial thermal therapy (LITT) with the immune checkpoint inhibitor pembrolizumab. LITT … Read more

Summary: New research suggests that recovery after a traumatic brain injury (TBI) may begin in the gut. A brief course of antibiotics in animal models remodeled the gut microbiome, reduced neuroinflammation and limited brain cell death, pointing to a gut–brain mechanism that influences healing after TBI. By reshaping the microbial community in the intestines, the … Read more

Summary: A decade-long analysis of roughly 35,000 Canadians shows a growing and concerning overlap between cannabis use and mental health problems. Between 2012 and 2022, as cannabis use became more common, rates of generalized anxiety disorder, major depressive episodes, and suicidality rose in parallel. The association strengthened over time, especially after legalization, with frequent users … Read more

Summary: A large longitudinal study of more than 410,000 adults reveals a complex association between active cigarette smoking and neurological outcomes. Published in Neurology, the research found that people who were still smoking during follow-up had a lower measured risk of being diagnosed with Parkinson’s disease than those who quit. At the same time, quitting … Read more

Summary: The cerebral cortex—the seat of higher cognition—depends on newly born neurons migrating to precise positions to form organized layers. New research identifies nonsense-mediated mRNA decay (NMD), an RNA surveillance pathway, as a crucial regulator of that migration and laminar organization. Scientists report that UPF2, a core NMD factor, is required for neurons to move … Read more

Summary: Unlearning a fear response—a process called fear extinction—is essential for recovering from traumatic or threatening experiences. A recent study identifies a specific biological “on/off switch” in the brain that can accelerate this process, revealing a potential target for improving treatments for anxiety disorders and PTSD. Researchers found that activating a defined population of neurons … Read more

Summary: Are you frequently pulled away from tasks by a notification or a passing thought? New research suggests this may be rooted in a basic biological rhythm: human attention does not remain steady but pulses roughly seven to ten times per second. These brief, recurring moments increase our readiness to notice changes in the environment … Read more

Summary: Rett syndrome is usually described as a disorder of neurons, but new research shows that the brain’s vascular system — the “plumbing” that surrounds and supports neurons — may be equally important. A landmark study finds that mutations in the MECP2 gene drive overexpression of a particular microRNA, miR-126-3p, which weakens blood-vessel structure and … Read more