neurobiology

Bedtime Procrastination Linked to Personality Traits

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Summary: New research reveals that bedtime procrastination in young adults is linked to specific personality traits, especially higher neuroticism and lower conscientiousness and extraversion. These associations remained significant even after accounting for chronotype, the natural inclination to sleep earlier or later. Bedtime procrastinators reported fewer positive emotional experiences and greater emotional distress, echoing symptoms of … Read more

T Cells Found Living in Healthy Brains

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Summary: Contrary to long-standing beliefs, T cells—key immune cells—have been discovered in the healthy brains of both mice and humans. These cells, previously thought to only enter the brain during disease, were most concentrated in a region that regulates hunger and thirst. The study suggests that T cells travel from the gut to the brain, … Read more

Blocking Opioid Receptors May Restore Healthy Dopamine Balance

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Summary: New research identifies a promising strategy for correcting dopamine imbalances in the brain using a drug that blocks kappa opioid receptors (KOR). In mouse models with a rare mutation that causes dopamine to leak abnormally, KOR blockers reduced this leakage and restored normal behavior. This approach could offer safer treatment alternatives for conditions like … Read more

SSRIs Restore Brain Function in Alzheimer’s

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Summary: A new study suggests that SSRIs, commonly prescribed antidepressants, may reduce biological markers of Alzheimer’s disease. In a cohort of 191 individuals, AD patients on SSRIs had lower levels of plasma phosphorylated tau-181, a key indicator of disease severity. Brain scans also showed that SSRIs restored metabolic activity in the dorsal raphe nucleus (DRN), … Read more

Dementia Risk: Gene Variant Affects Men Differently

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BREAKING: Gene Variant Doubles Dementia Risk in Men BREAKING: Gene variant Doubles Dementia Risk in Men By Anya Sharma | SYDNEY – 2025/05/30 22:16:57 A new study reveals… The post Dementia Risk: Gene Variant Affects Men Differently appeared first on NewsyList. Source link

Caffeine Disrupts Sleep Brainwaves and Delays Nighttime Recovery

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Summary: A new study reveals that caffeine increases the complexity of brain activity during sleep, especially in younger adults, potentially disrupting the brain’s ability to recover overnight. Researchers used EEG and AI to analyze sleep in 40 adults after caffeine or placebo intake, identifying less predictable brain signals and increased wake-like brainwave patterns. Caffeine altered … Read more

Dementia Diagnoses Decline, But More Are Living Longer With the Disease

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Summary: A new study of over 25 million Medicare recipients found that while dementia incidence in the U.S. is declining, more older adults are living longer with the condition. From 2015 to 2021, new diagnoses dropped from 3.5% to 2.8%, yet prevalence increased to nearly 12%. The findings underscore a growing need for long-term care … Read more

ALS Drug Shows Unprecedented Recovery in Patients With Rare Mutation

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Summary: A groundbreaking experimental therapy for a rare, aggressive form of ALS caused by FUS gene mutations has produced surprising clinical improvements in some patients, including restored mobility and extended survival. The treatment uses antisense technology to silence the FUS gene, reducing toxic protein buildup in motor neurons. Two patients in a recent case series … Read more

Anxiety & Oral Health: Does Shared Microbiota Play a Role?

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The Unexpected Link Between Marriage, Oral health, and Mental Wellbeing Table of Contents The Unexpected Link Between Marriage, Oral health, and Mental Wellbeing Microbial Sharing and Emotional Synchronization How Does This Happen? The Role of Cortisol and Key Bacteria Study design and Findings Implications for Future Research and personalized Medicine Anxiety & Oral Health: Does … Read more

Married Minds: Oral Microbiota May Mediate Shared Anxiety

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Summary: A new study suggests that oral microbiota transmission between newlywed couples may influence the onset of depression and anxiety symptoms. Researchers observed that healthy spouses of partners with insomnia, depression, and anxiety developed similar mental health symptoms and microbiota profiles within six months of marriage. The study found strong correlations between shared bacterial strains, … Read more