The results of a sleep survey show that at this stage, about 30% of mothers-to-be will start snoring in their sleep. If your nasal congestion is very severe, you may also develop sleep apnea, which is characterized by loud snoring and periodic breathing stops. When we sleep, the soft tissue of the pharyngeal muscles relaxes automatically, so the jaw and tongue fall backwards, blocking the airway or reducing its opening, so the airflow through the airway must be faster. The result of faster breathing is that the soft tissues of the pharynx oscillate, and snoring is the sound of this oscillation. Occasional snoring is not a major obstacle, but in severe snoring, the upper airway can become completely blocked. The lungs also receive no oxygen for up to 30 seconds, which can easily lead to fainting. Snorers usually fall asleep with loud gasps, and sleep apnea lasts for three seconds or more each time, and is repeatedly cycled during sleep. The majority of people think it is commonplace to snore at night and do not take it seriously, while others see snoring as a sign of a good night’s sleep. Snoring is the enemy of health, as snoring makes sleep breathing repeatedly suspended, resulting in serious lack of oxygen to the brain, blood, the formation of hypoxemia, and induced hypertension, cerebral heart disease, heart rate disorders, myocardial infarction, angina pectoris. Nocturnal apnea of more than 120 seconds is prone to sudden death in the early morning. Some pregnant women experience snoring during sleep because the upper airway narrows during pregnancy. According to researchers: only 14% of women who are not pregnant snore, while healthy pregnant women are twice as likely to snore. It is considered normal to be prone to snoring during pregnancy. Simple snoring is not relevant, but if it is accompanied by increased blood pressure and increased urine protein, it should be taken seriously and alerted. This is because apnea may occur when snoring, which in severe cases can raise blood pressure and increase the likelihood of hypoxemia, which can cause fetal hypoxia in addition to the possible increased risk for pregnant women.