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Sleep Bruxism and GERD: 7 Studies Linked Tooth Grinding With Reflux

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A 2026 scoping review screened 174 records and found 7 human studies linking sleep bruxism with gastroesophageal reflux disease.1 The signal was consistent but messy: case-control studies reported roughly 5- to 6-fold higher odds of bruxism with GERD, while instrumental studies suggested reflux episodes, arousals, swallowing, and jaw-muscle bursts may cluster during sleep. Research Highlights …

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Transgender Discrimination and Violence Across Europe

Trans people in Europe reported more discrimination and violence than cisgender lesbian, gay, and bisexual people in a 30-country survey of 138,212 respondents. The gap concentrated in identity-based discrimination, physical or sexual attacks, disability, ethnic-minority status, and gender identity within trans groups.1 Research Highlights 30-country gap was large and consistent: trans respondents reported discrimination in …

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Group fMRI Misread Cognitive Control in 4,423 Youth

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A 2026 ABCD stop-signal fMRI study found that group-level cognitive-control brain signals often failed to describe within-person brain dynamics: across 16 comparisons, between-person and within-person associations diverged, and several reversed direction.1 The practical warning is narrow but sharp: a brain pattern that separates people in a group may be the wrong map for explaining how …

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Football Head Impacts Linked Cortical Slowing to NET and BDNF Maps

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A 91-player adolescent football preprint mapped head-impact-related cortical slowing onto brain receptor and gene-expression maps: concussion-related slowing aligned with norepinephrine transporter density, r = 0.43, and alpha-4 beta-2 nicotinic receptor density, r = 0.50, while aligning inversely with dopamine D2, BDNF, and APOE maps.1 The result is a mechanistic clue about where head-impact physiology may …

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U.S. Substance-Use Disorder DALYs Rose 213.5%: Opioids Led

A Global Burden of Disease analysis estimated that U.S. age-standardized substance-use disorder disability-adjusted life-year rates rose 213.5% from 1990 to 2019, with opioid use disorders producing the steepest increase and the largest state-level burden.1 Research Highlights U.S. cases rose sharply: prevalent substance-use disorder cases increased from 12.6 million in 1990 to 19.5 million in 2019.1 …

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LLM Psychology Questionnaire Generation Improved Readability 36.7%

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A 2026 PLOS One study fine-tuned Qwen-2.5 and GLM-4 for psychology questionnaire generation and reported the largest gain in readability and comprehension difficulty: 3.41 to 4.66 on a 0–5 scale, a 36.7% relative improvement.1 The result supports item drafting inside a psychometric workflow, while clinical or research scale use still requires ordinary validation. Research Highlights …

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