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mental health

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·September 2, 2025·6 min read

Chronic Stress Sends Immune Cells to Brain, Driving Depression

A new study shows that chronic stress causes immune cells called neutrophils to leave bone marrow in the skull and collect in the brain’s protective membranes, where they contribute to depressive symptoms. In mice, blocking an immune “alarm” pathway reduced these cells and improved mood-related behaviors.

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Featured Neuroscience Psychology

·September 1, 2025·2 min read

Depression Disrupts Learning to Avoid Unpleasant Events

Depression specifically impairs the ability to learn how to actively avoid unpleasant events, though it does not affect avoidance behavior once learned. Researchers tested 465 participants across a range of depressive symptoms in a task adapted from rodent research, involving sounds and visual cues.

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Featured Neuroscience Psychology

·August 29, 2025·5 min read

Hormonal Contraceptives Influence Memory of Emotional Events

A new study reveals that hormonal contraceptives may shape both emotional responses and memory processing in women. Compared with naturally cycling women, users of hormonal birth control had stronger emotional reactions and remembered fewer details of negative events when using regulation strategies like distancing or reinterpretation.

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·August 28, 2025·4 min read

Brain Cells Behind Depression Identified

Researchers analyzing post-mortem brain tissue found two cell types altered in people with depression: excitatory neurons that regulate mood and stress, and microglia that manage inflammation. The findings highlight how depression is tied to measurable brain changes, not just emotional symptoms.

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Featured Neuroscience Open Neuroscience Articles Psychology

·August 28, 2025·3 min read

The Midlife “Unhappiness Hump” Has Vanished, But at a Cost

A new large-scale study finds that the long-observed “unhappiness hump,” where mental distress peaked in midlife, has disappeared. Instead, younger people now report the highest levels of anxiety, depression, and stress, with ill-being declining across the lifespan.

Featured Neuroscience Open Neuroscience Articles Psychology

·August 27, 2025·3 min read

Cannabis Linked to Reduced Insomnia and Anxiety

A new study suggests cannabis-based medical products may help people with insomnia sleep better over the long term. Across 124 patients followed for up to 18 months, participants consistently reported improved sleep quality, less anxiety and depression, and a better overall quality of life.

Featured Neuroscience Psychology

·August 27, 2025·4 min read

Brain Map Reveals How Stress and Social Control Interconnect

A new study has identified a key brain hub in the medial prefrontal cortex that regulates stress responses and social behavior, offering critical insights into psychiatric conditions. Using advanced imaging and AI mapping in mice, scientists charted how these regions integrate sensory and bodily signals to control emotional stability.

Featured Neuroscience Psychology

·August 26, 2025·5 min read

Big Five No More? New Study Uncovers Hidden Personality Traits

For 40 years, the Big Five personality model has dominated psychology, but new research suggests it may be incomplete. Using taxonomic graph analysis, researchers mapped personality from the ground up, uncovering new meta-traits and traits not captured by the Big Five.

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Featured Neuroscience Psychology

·August 26, 2025·4 min read

High-THC Cannabis Linked to Psychosis and Addiction

A systematic review of nearly 100 studies found that high-THC cannabis products are linked to negative mental health outcomes, particularly psychosis, schizophrenia, and cannabis use disorder. While some therapeutic research hinted at benefits for anxiety and depression, results were inconsistent and often showed potential harm.

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Featured Neuroscience Psychology

·August 25, 2025·3 min read

Brain Activity Pattern Linked to Self-Preoccupation and Anxiety

A new study identifies a brain activity pattern that signals self-preoccupied thinking, a trait associated with anxiety and depression. In experiments, the pattern appeared during mental breaks and predicted when people would soon turn their thoughts inward.

Featured Neuroscience Psychology

·August 22, 2025·2 min read

Brain Study Reveals Circuit Controlling Depression and Anxiety

A new study identifies brain area 46 in the marmoset dorsolateral prefrontal cortex as a key regulator of mood-related behavior. When this region was inactivated, the animals showed less interest in rewards and heightened sensitivity to threats, mimicking depression and anxiety symptoms.

Featured Neuroscience Psychology

·August 21, 2025·4 min read

How Stress Types Differently Impact Brain and Behavior

Stress is a universal experience, but not all stress affects the brain in the same way. A new study in rats reveals that acute stress provokes anxiety-like behaviors, especially in males, while chronic stress is more strongly tied to depressive symptoms.