Snoring is closely related to hypertension and snoring tends to cause high blood pressure. Patients with hypertension will have low blood pressure at night, while snoring patients will have persistently high blood pressure at night. This is because snoring tends to cause hypoxia, which reflexively causes excitation of the sympathetic nervous system, resulting in increased heart rate and arterial vasoconstriction, leading to higher blood pressure. The blood pressure of snoring patients is often poorly controlled, and snoring increases the risk of cardiovascular and cerebrovascular disease attacks. Studies have shown that nearly 1/2 of hypertensive patients are related to snoring, and the causes of snoring are often related to obesity, alcohol consumption, smoking, poor airway ventilation and cerebrovascular diseases.