Maternal Health Autism Links Were Partly Genetic in Danish Families

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Maternal Health Autism Links Were Partly Genetic in Danish Families

TL;DR: A 2026 preprint registry-family study in medRxiv found that some maternal diagnosis-autism associations fit shared direct genetic effects, while other diagnoses showed stronger parallel-cousin associations, suggesting indirect genetic effects through the prenatal environment. Key Findings Study type: a three-generation Danish register study comparing full maternal parallel and cross cousin pairs. People studied: 1,131,899 children …

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Inaudible Infrasound Increased Stress Hormones and Negative Mood in Controlled Trial

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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 …

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Loneliness-Isolation Mismatch Predicted Cognition Through Chronic Disease

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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 …

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Lateral Septal PACAP Signaling Regulated Stress and Anxiety Responses

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Lateral Septal PACAP Signaling Regulated Stress and Anxiety Responses

TL;DR: A 2026 rat study in Neuropsychopharmacology found that PACAP/PAC1 signaling in the lateral septum changed forced-swim coping, ACTH stress-hormone release, open-arm exploration, and grooming behavior. Key Findings Stress changed PACAP signals by brain region: Acute swim stress increased PACAP mRNA in the lateral septum, BNST, and basolateral amygdala, while chronic variable mild stress reduced …

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Quantitative MRI Detected White Matter Injury Linked to MoCA Scores

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Quantitative MRI Detected White Matter Injury Linked to MoCA Scores

TL;DR: A 2026 medRxiv preprint used quantitative multi-parametric MRI mapping in 245 BeLOVE participants and found that white matter hyperintensities had lower MTsat and R1 plus higher proton density, with nearby normal-appearing white matter also showing microstructural changes linked to MoCA, a brief cognitive screening score. Key Findings 245 MRI participants: The analysis used cerebral …

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Late-Window Stroke IVT Did Not Improve Thrombectomy Outcomes

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Late-Window Stroke IVT Did Not Improve Thrombectomy Outcomes

TL;DR: A 2026 medRxiv preprint found that giving intravenous thrombolysis (IVT), a clot-dissolving drug treatment, before endovascular thrombectomy (EVT), a catheter procedure to remove a large brain clot, did not significantly improve 3-month recovery or increase bleeding risk in selected stroke patients treated 6 to 24 hours after symptoms began. Key Findings Registry cohort: The …

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Serum and CSF Metabolites Were Linked to Knee Osteoarthritis Pain

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Serum and CSF Metabolites Were Linked to Knee Osteoarthritis Pain

TL;DR: A 2026 cross-sectional metabolomics study in Brain, Behavior, & Immunity – Health found that serum and cerebrospinal fluid (CSF) metabolite signatures differed in knee osteoarthritis and related to pain, fatigue, sleep, and pressure sensitivity, while CSF histamine and 3-hydroxyphenylacetic acid were associated with pain intensity and sleep disturbance. Key Findings Study type: a targeted …

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Parental Severe Mental Illness Linked to Offspring Cognitive Performance

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Parental Severe Mental Illness Linked to Offspring Cognitive Performance

TL;DR: A 2026 Psychological Medicine meta-analysis of 109 studies linked parental severe mental illness, especially schizophrenia and bipolar disorder, to lower cognitive performance in offspring across IQ, language, memory, executive function, and general cognition. Key Findings Scale: The review included 109 studies and 1,586,339 participants. Schizophrenia: Offspring of parents with schizophrenia had lower scores across …

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Oral Acetate Case Series Found Metabolic Improvements in Psychotropic Weight Gain

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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 …

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

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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 …

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