Emotional Stress Causes Immediate Awakenings During Deep Sleep
Summary: Researchers have identified a precise neural pathway that converts emotional stress into immediate wakefulness during non-rapid eye movement (NREM) sleep. In…
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How Depression Silently Damages Your Heart via Stress Pathways
Summary: Depression and anxiety appear to increase the risk of cardiovascular disease through chronic stress pathways that involve the brain, autonomic nervous…
How Musical Improvisation Rewires the Brain in Real Time
Summary: Studying creativity as it happens is difficult, but musical improvisation provides a rare, observable window into spontaneous idea generation. In a…
Dairy Consumption Associated with Lower Dementia Risk
Summary: A large, 25-year Swedish study reported an association between higher consumption of certain full-fat dairy products—specifically high-fat cheese and high-fat cream—and…
How Dopamine Supports Movement Instead of Controlling Speed
Summary: New research suggests dopamine’s role in movement is different than previously believed. Rather than directly controlling the force or speed of…
How Social Isolation Accelerates Cognitive Decline
Summary: New research shows that objective social isolation directly causes faster cognitive decline in later life, independent of subjective feelings of loneliness.…
Why fMRI Often Misreads Brain Activity
Summary: New research shows that fMRI signals do not always reflect true neural activity, overturning a key assumption used in tens of…
How Two Dopamine Neuron Subtypes Encode Odors Differently
Summary: Two closely related types of dopamine-releasing neurons in the olfactory bulb behave very differently because of their physical shape. One subtype…
Why Consciousness Evolved: Origins and Evolution Explained
Summary: New research examines why consciousness evolved and what studying birds reveals about its biological purpose. The work identifies three distinct forms…
How Cancer Disrupts the Brain’s Circadian Rhythm
Summary: Breast cancer can quickly disturb the brain’s regulation of day-night stress hormones, even before tumors are detectable. In mice, the disease…
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