A small 2026 study links severe sleep apnea and hypertension with altered gut metabolites, intestinal-barrier injury markers and more bacterial endotoxin in blood, without proving causation.
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.
The Long View