Lack of oxygen when sleeping, or sleep-related hypoxemia is the phenomenon of decreased blood oxygen and increased blood carbon dioxide levels. Sleep-related hypoxemia, if not diagnosed and treated in time, can lead to full-body oxygen deprivation, together with a series of metabolism disorders such as hypertension, myocardial infarction, occlusive stroke, brain hemorrhage…, or even sudden death.

Many people feel dry throat, sore throat, etc., after waking up. There are many reasons why you may experience a sore throat after waking up. So what are those reasons and how to reduce a sore throat after waking up?