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Residual Sleepiness in Treated Sleep Apnea Linked to Memory Deficits

Stylized sleep-apnea treatment scene with CPAP, daytime sleepiness testing, and memory-task circuitry, representing cognitive deficits linked to residual sleepiness despite PAP adherence.

Some sleep apnea patients stay sleepy even when their CPAP is used 6+ hours a night and apnea events have been driven back to normal range. A 2026 cross-sectional study of 65 PAP-adherent adults found those residually sleepy patients performed measurably worse on global cognition, memory, executive function, attention, and processing speed than their well-rested …

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Child and Adult Adversity Doubled Frailty in UK Biobank

Editorial card showing a life-course timeline with biological aging biomarkers, illustrating how cumulative childhood and adult adversity stack on the frailty index.

A 2026 UK Biobank analysis by Aas et al. in BMC Medicine tests the “adversity leaves a fixed biological scar” framing against five biological aging markers in 153,557 middle-aged and older adults — and the marker that moves most reliably isn’t telomere length or any metabolomic clock.1 Research Highlights 153,557-participant test: Aas et al. measured …

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AI Levodopa Timing Improved UPDRS 4.4 Points in 5 Parkinson Patients

MHD featured image for AI-guided levodopa dosing in Parkinson's disease.

A 2026 open-label feasibility trial involving 5 Parkinson’s disease patients found that app-randomized levodopa timing was associated with a mean 4.4-point improvement on the Unified Parkinson’s Disease Rating Scale, but the signal missed conventional statistical significance at p = 0.063.1 The narrow conclusion is feasibility: this was a dosing experiment that justified a blinded controlled …

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CARES Addiction Risk Screening: 15-Stakeholder Preprint

MHD featured image for CARES addiction risk screening implementation.

A 2026 medRxiv preprint interviewed 15 health-system stakeholders about CARES, a freestanding addiction-risk screening platform, and found a clear implementation split: people wanted better substance-use prevention tools than current clinic screening, but provider burden, stigma, knowledge gaps, and medical-record liability could block uptake.1 Research Highlights Stakeholders saw a screening gap: all 15 interviewees held leadership …

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Accelerated tDCS Reduced Pain in 4 of 5 Bodily Distress Disorder Cases

MHD featured image for accelerated tDCS and bodily distress disorder.

A 2026 case series of 5 adults with bodily distress disorder found mean pain scores decreased from 9.0 to 3.8 after accelerated transcranial direct current stimulation, with 4 of 5 patients achieving at least 50% pain reduction.1 The result is a feasibility signal, not proof of efficacy, because every patient knew they were receiving stimulation …

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Non-Invasive Prehabilitation Shifted Brain Tumor Language Networks

MHD featured image for non-invasive prehabilitation, brain tumors, and language-network plasticity.

A 2026 brain tumor prehabilitation study involving 26 surgical patients found that language-targeted non-invasive stimulation plus intensive language training shifted fMRI language activation away from the stimulation target, while measured language and cognition stayed stable. Research Highlights Language-targeted prehabilitation moved the fMRI signal: the group-by-time interaction for stimulation-target overlap was significant, F(1,23) = 4.61, p …

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Migraine With PFO: Lower Indoleacrylic Acid, 211 Metabolite Changes

MHD featured image for migraine with PFO metabolomics and indoleacrylic acid.

A 2026 iScience metabolomics study found 211 differentially expressed metabolites in migraine patients with patent foramen ovale; in a 220-person validation cohort, lower indoleacrylic acid plus hs-CRP reached AUC 0.722 for distinguishing migraine with PFO from controls.1 Research Highlights Metabolomics found a broad signal: The discovery cohort included 30 migraine-with-PFO patients and 17 controls, with …

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