When apnea occurs frequently during sleep, medically speaking, there are two reasons: 1, due to the collapse of the upper airway of the respiratory tract, as a result of muscle relaxation after sleeping at night, the mucosa of the upper airway collapsed down, including muscles, tongue muscles may be loose, collapsed down, blocking the upper airway. 2, people who have had cerebrovascular disease may have central control, resulting in the collapse of the airway and obstruction, that kind of tube it It is called central sleep apnea. And the collapsed upper airway mentioned earlier is called obstructive sleep apnea. Both of these require targeted intervention because sleep apnea can lead to hypoxia in the middle of sleep, which can lead to a series of diseases that need to be treated.