The present disclosure provides methods for treating obstructive sleep apnea (OSA) and OSA induced cardiorespiratory diseases. The disclosure provides, inter alia, methods for treating or alleviating: OSA or OSA induced hypertension, cardiac arrhythmias, myocardial ischemia, sudden cardiac death or stroke, by administering oxytocin. The disclosure further provides methods for improving sleep satisfaction in OSA patients by administering oxytocin.