🔬 Science 1d ago · The Long View

Sleep apnea starts with a blocked airway, but some of the damage may travel through the gut: new 2026 research found that patients who also developed hypertension showed altered gut bacteria, weakened intestinal barriers and rising levels of bacterial endotoxin in their blood.

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Obstructive sleep apnea begins with a physical failure in the throat. During sleep, the upper airway repeatedly narrows or closes, airflow falls, oxygen drops and the brain briefly pulls the sleeper toward wakefulness to restore breathing. Yet the damage associated with those events may not remain anywhere near the airway.
A 2026 study in iScience adds a possible intestinal route to the familiar pathways connecting sleep apnea with high blood pressure. In men who had both severe apnea and hypert

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