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Suspected Narcolepsy Turned Out to Be Epilepsy and Sleep Apnea

MHD card showing a sleeping person lying face-up on a pillow under a crescent moon, with a breathing wave that pauses and then turns into a jagged seizure-like burst, illustrating a case of suspected narcolepsy that turned out to be epilepsy and sleep apnea.

In a 2026 case report from China, a 34-year-old woman with mild intellectual disability was sent for evaluation of possible narcolepsy. Sleep testing and EEG instead showed epilepsy and moderate obstructive sleep apnea.1 Research Highlights Narcolepsy was ruled unlikely: she took 9.3 minutes on average to fall asleep during daytime nap tests, with no early …

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GLP-1 Drugs Reduced Sleep Apnea AHI by 13.89 Events per Hour

MHD featured image for GLP-1 receptor agonists reducing sleep apnea severity and weight.

A 2026 meta-analysis of 4 randomized trials found that GLP-1 receptor agonists reduced obstructive sleep apnea severity by 13.89 apnea-hypopnea events per hour compared with placebo, alongside 12.46 kg more weight loss than placebo.1 The effect looks clinically meaningful for obesity-linked sleep apnea, but high heterogeneity means the result should not be flattened into “GLP-1 …

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Hypoglossal Nerve Stimulation Improved Sleep Symptoms More Than Cognition

MHD featured image for hypoglossal nerve stimulation, sleep apnea symptoms, and cognition.

A 2026 CARDIOSA-12 secondary analysis found that active hypoglossal nerve stimulation improved sleepiness, insomnia, snoring, and sleep-related function, but objective cognitive test performance mostly did not improve compared with partially therapeutic stimulation.1 Symptom relief and measurable cognitive recovery answer separate clinical questions in treated obstructive sleep apnea. Research Highlights Subjective outcomes improved: active HGNS improved …

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Hodgkin Lymphoma Survivors: Occult Sleep Apnea and Fatigue

A 2026 study of Hodgkin lymphoma survivors treated with mantle radiation found obstructive sleep apnea (OSA) in 36 of 42 people who eventually underwent sleep testing. The practical screening target is a younger, non-obese, positional, hypopnea-heavy post-radiation OSA phenotype that standard risk heuristics can miss.1 Research Highlights Sleep symptoms identified a fatigued subgroup: 45 of …

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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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Neck-to-Height Ratio Screens Pediatric Sleep Apnea Better Than BMI

Editorial medical card showing pediatric sleep apnea screening with neck measurement, PSG waveforms, and airway anatomy.

A 2026 polysomnography study involving 685 children found that neck-to-height ratio identified moderate/severe pediatric obstructive sleep apnea better than BMI Z-score, waist-to-height ratio, or hip-to-height ratio. The signal was useful but not diagnostic: neck-to-height ratio reached AUC 0.781 overall, which is strong enough for triage but not strong enough to replace a sleep study.1 Research …

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