Guilt and Shame Shape Behavior Through Separate Brain Pathways

Summary: Guilt and shame arise from different cognitive triggers and rely on distinct neural systems to guide compensatory behavior. Using a controlled game that manipulated both harm and responsibility, researchers…

Emotional Stress Triggers Instant Arousal From Deep Sleep

Summary: A new study uncovers a precise brain pathway that rapidly converts emotional stress into sudden wakefulness during NREM sleep. Researchers found that GABAergic neurons in the BNST activate glutamatergic…

Depression Quietly Damages the Heart Through Stress Circuits

Summary: Depression and anxiety may heighten cardiovascular disease risk through chronic stress pathways in the brain and body. In a large analysis of more than 85,000 adults, those with depression…

Social Isolation Directly Speeds Up Cognitive Decline

Summary: Social isolation has a direct causal impact on how quickly cognitive function declines in later life, independent of whether someone feels lonely. By analyzing more than 137,000 cognitive tests…

Second-Hand Gifts Are Becoming the New Status Symbol

Summary: New research shows that buying second-hand gifts is typically a thoughtful, intentional decision rather than an impulsive one. Consumers are motivated by fair prices, the thrill of finding rare…

Study Challenges Myths About Self-Centeredness

Summary: A large international study of more than 45,000 people shows that narcissism is a universal personality trait—not one concentrated in any single country. Although nations differed somewhat, the five…

AI Brain Model Reveals How Fear Works in Real Life

Summary: Researchers have developed an AI-driven brain model that can track fear as it unfolds in real-world situations, offering a major shift from traditional lab-based approaches. Classic fear studies often…

Stress Levels Predict Cannabis Use

Summary: New research shows that rats with naturally higher baseline stress hormone levels are significantly more likely to self-administer cannabis vapor. Over several weeks, rats were allowed to nose-poke for…

Anti-Inflammatory Treatments Show Promise for Depression

Summary: A new analysis shows that anti-inflammatory medications may help reduce symptoms for a subset of people with depression who also have chronic, low-grade inflammation. By reviewing randomized controlled trials…

Positive Imagining Changes the Brain in Seconds

Summary: Vividly imagining a positive interaction with someone can increase how much you like them — and even alter how your brain stores information about that person. During imagined encounters,…