Sleep Apnea Triggers Nocturnal Urination via Heart Stress and Hormonal Shifts
Dr. Keith Roach explains that obstructive sleep apnea (OSA) often causes frequent nighttime urination, or nocturia, due to complex physiological responses. When the airway closes during sleep, negative pressure in the chest stretches the heart’s atria, triggering the release of atrial natriuretic peptide (ANP). This natural diuretic signals the kidneys to excrete excess salt and water. Additionally, partial awakenings to restore airway tension may create a false urge to urinate. Treating OSA with CPAP therapy can significantly reduce these episodes. In a separate query, Roach advises against treating asymptomatic urinary tract infections in elderly patients, noting that antibiotics pose greater risks than benefits without symptoms.
