Is it okay to close the windows when sleeping at night?

　　night sleep windows closed

　　Many people close the windows when sleeping at night, thinking that they will sleep better this way. In fact, it is wrong to close the windows when sleeping at night.

　　Because after people fall asleep, they will inhale 300 ml of oxygen and exhale 250 ml of carbon dioxide every minute. If you sleep with the doors and windows closed at this time, there will be no ventilation in the room, the oxygen in the room will gradually decrease, and the carbon dioxide will increase sharply, especially in a room with a small number of people. According to statistics, three hours after falling asleep, the carbon dioxide gas in the room can increase several times. At the same time, the number of bacteria, dust and other toxic substances will also increase exponentially. These substances will be inhaled into the body as people breathe, seriously threatening the health of the human body. healthy . Therefore, it is best not to close all the windows when sleeping at night, but to leave a ventilation window to ensure indoor ventilation and fresh air, which is beneficial to people's health. Of course, you need to be careful when opening windows in winter to prevent people from getting cold while sleeping. The best way is to leave a small gap.

　　In addition, there are safety issues to pay attention to, and windows should not be opened in special weather such as sandstorms and fog.