Health & Wellness

Inaudible Infrasound Increased Stress Hormones and Negative Mood in Controlled Trial

by
Inaudible Infrasound Increased Stress Hormones and Negative Mood in Controlled Trial

TL;DR: A 2026 Frontiers in Behavioral Neuroscience study reported that inaudible infrasound shifted mood toward unease and raised stress-hormone markers under controlled conditions, offering a physiological explanation for some room-specific fear sensations without supporting supernatural claims. Key Findings Inaudible infrasound shifted mood: Controlled exposure produced measurable mood changes — toward unease, anxiety, and a felt …

Read more

Loneliness-Isolation Mismatch Predicted Cognition Through Chronic Disease

by
Loneliness-Isolation Mismatch Predicted Cognition Through Chronic Disease

TL;DR: A 2026 MIDUS mediation study in Brain, Behavior, & Immunity – Health found that social asymmetry was associated with greater chronic disease burden, while chronic disease burden mediated links between social asymmetry and episodic memory and executive function, while allostatic load did not. Key Findings Study type: a structural equation modeling study of social …

Read more

Oral Acetate Case Series Found Metabolic Improvements in Psychotropic Weight Gain

by
Oral Acetate Case Series Found Metabolic Improvements in Psychotropic Weight Gain

TL;DR: A 2026 case-series study in Translational Psychiatry tested delayed-release oral acetate from apple cider vinegar capsules in 11 young adults taking psychotropic medications and found high adherence, no product-related adverse events, microbiome shifts, and metabolic improvement in 6 participants, but the uncontrolled design means the findings need placebo-controlled testing. Key Findings 11 completers: The …

Read more

GLP-1 Drugs Suppressed Reward Feeding Through a Central Amygdala Circuit

by
GLP-1 Drugs Suppressed Reward Feeding Through a Central Amygdala Circuit

TL;DR: A 2026 mouse study in Nature found that small-molecule glucagon-like peptide 1 receptor agonists (GLP-1RAs), obesity and diabetes drugs built around a glucose-linked hormone pathway, suppressed palatable-food intake through central amygdala neurons that lowered nucleus accumbens dopamine. Key Findings Humanized mouse model: Researchers engineered mice so small-molecule GLP-1 receptor agonists could be studied despite …

Read more

Kynurenine Metabolites Were Higher in Inflammatory Depression

by
Kynurenine Metabolites Were Higher in Inflammatory Depression

TL;DR: A 2026 biomarker analysis in Brain, Behavior, & Immunity – Health across antidepressant trials found that kynurenine pathway metabolites were elevated in inflammatory depression compared with non-inflammatory depression and healthy controls, while omega-3 polyunsaturated fatty acid treatment reduced several kynurenine pathway metabolites. Key Findings Study type: a combined analysis of two depression trials testing …

Read more

IGF1R Inhibitors Improved Mouse Healthspan but Raised Safety Concerns

by
IGF1R Inhibitors Improved Mouse Healthspan but Raised Safety Concerns

TL;DR: A 2026 mouse preprint in bioRxiv reported that small-molecule IGF1R inhibitors, drugs that block insulin-like growth factor 1 receptor signaling, protected several healthspan measures in aging mice, but the tested compounds also carried major safety and drug-development problems. Key Findings 150 aging mice: Researchers assigned 55-week-old C57BL/6 mice to control diet, PPP, or NVP-ADW742, …

Read more

Household Pesticide Exposure Was Associated With Depression Risk

by
Household Pesticide Exposure Was Associated With Depression Risk

TL;DR: A 2026 cross-sectional NHANES analysis in Depression and Anxiety found that urinary pyrethroid metabolite 3-PBA showed a dose-dependent association with depression, while female participants showed stronger associations for 3-PBA and 4F-3-PBA, while males showed sensitivity to DCBA in mixture models. Key Findings Study type: a survey-weighted analysis using self-reported pesticide exposure and urinary pesticide …

Read more

Hippocampal CA3 Connectivity Transformed From Dense-Random to Sparse-Structured Across Postnatal Development

by
Hippocampal CA3 Connectivity Transformed From Dense-Random to Sparse-Structured Across Postnatal Development

TL;DR: A 2026 Nature Communications study found that mouse hippocampal CA3 connectivity shifts from dense-random early wiring to sparse-structured adult wiring, with weaker single synapses that make memory-network output depend on coordinated input rather than one strong connection. Key Findings CA3 connectivity transforms from random to structured during postnatal development: Early in life (P7-8 mice) …

Read more

Generational Memory Gains May Help Explain Declining Dementia Incidence

by
Generational Memory Gains May Help Explain Declining Dementia Incidence

TL;DR: A 2026 preprint longitudinal cohort analysis in medRxiv found that later-born cohorts showed higher memory levels entering old age and slower rates of memory decline, while the projected 20-year cohort advantage at age 80 was large enough in the model to account for a reported 13% per-decade decline in dementia incidence. Key Findings Birth-cohort …

Read more

New-Onset Loneliness Accelerated Cognitive Decline in 635 Older Adults: ELSA Longitudinal Analysis

by
New-Onset Loneliness Accelerated Cognitive Decline in 635 Older Adults: ELSA Longitudinal Analysis

TL;DR: A 2026 longitudinal analysis in the Journal of Affective Disorders tracked 635 older adults with new-onset loneliness and found that cognitive decline matched controls before loneliness began, then accelerated after onset, especially when loneliness persisted. Key Findings Pre-loneliness cognitive trajectories were identical: Before the first reported episode of loneliness, cognitive scores in 635 future-lonely …

Read more

+ Load more