Window opening during sleep to prevent hypoxia syndrome
The high temperature is low, the time for people to stay in the closed space is greatly increased, and the ventilation is not paid attention to. The indoor air cannot be replaced and replenished in time, the air quality is degraded, and the reduction of air activity in winter, the body is deprived of oxygen, experts say”Hypoxia syndrome.”
If the time of hypoxia is too long, the human body may have a series of abnormalities, which may even be life-threatening in severe cases.
According to tests, the oxygen concentration is usually 21% in a place with better oxygen. After a night of sleep in a closed bedroom, the oxygen concentration will drop to 17%-19%, or even.
Window ventilation is the most timely and easy way to prevent “hypoxia syndrome”.
It should be noted that if the room temperature is too low, and the window is not ventilated during the whole process of sleep, it can also be ventilated and ventilated before going to bed, close the window, and then go to bed to sleep.
In the cold winter, in order to maintain indoors, many families often close their doors and windows, especially at night, which is not a good strategy.
If people are active indoors for a long time, coupled with poor ventilation and high indoor air pollution, winter is a high season for respiratory infections.
According to the measurement, in a 10 square meter room, if the doors and windows are closed, three people read the book indoors, and after 3 hours, the carbon dioxide in the room is increased by three times.
The bacteria increased by 2 times.
The dust increased by 9 times, and more than 20 other substances were found.
Window ventilation is the easiest and most cost-effective way to improve indoor air cleanliness.
According to research, when the room temperature is as high as 8 °C -10 °C, the window with a room area of 1/50 is ventilated for 30 minutes, the bacterial contamination rate in the connected indoor air is reduced by 40%; when the outside temperature is below minus 3 °C-9 °C,Venting the same large ventilation window for 10 minutes, the indoor bacterial contamination rate can be reduced by 65%.
In addition, some elderly people are always cold and cold, and always wear more clothes when they sleep in winter.
I don’t know if this is bad for health.
When the person sleeps, the central nervous system activity slows down, the brain and muscles enter the rest state, the number of heart beats decreases, the muscles move and the tension is weakened, and then the clothes are undressed, and the fatigue can be quickly eliminated, so that all organs of the body are obtained.Very good rest.
Since human skin can secrete and emit some chemicals, if you sleep with clothes, once the normal breathing and sweat on the skin evaporate, the compression and friction of the clothes on the muscles will affect the blood circulation, causing the body surface to decrease, even if the coverOn the thicker quilt, you will feel cold.
In particular, it is not advisable to wear clothes to sleep in the cold winter.