Science popularization - When it comes to winter, the chest is stuffy and weak?

Urban people into the "winter hypoxia" disaster area!

  About to enter November, the cold north wind whistling, many people choose to close the doors and Windows to avoid its edge, thinking that this will not be cold.

  As everyone knows, closed doors and Windows, coupled with heating heating, sometimes become a hidden "killer".

  According to the test, the oxygen concentration is usually about 21% in the place where the oxygen is better, and after a night's sleep in the closed bedroom, the oxygen concentration will drop to 17%~19%, or even lower.

  The hypoxia time is too long, the human body may appear dizziness, headache, chest discomfort and other symptoms, serious will be life-threatening.

So what are we supposed to do?

1、 ventilation

Open the doors and Windows once a day in the morning, in the middle and in the evening, for 15 to 30 minutes each time; If there is no obvious air flow between the indoor and outdoor areas during ventilation, ventilation can be properly carried out by means of extraction fans and electric fans.

Even if the air conditioner is used, the room should not be closed, and the window should be kept 3 to 4 cm gap to allow fresh air to flow in.

2、Keep the right temperature

Indoor should maintain the appropriate temperature, to avoid indoor and outdoor temperature difference is too large, it is generally believed that the room temperature control at 16 ° C ~ 24 ° C is appropriate, the temperature is too high, will also make people feel sleepy, weak. Even if the air conditioner is used, the room should not be closed, and the window should be kept 3 to 4 cm gap to allow fresh air to flow in.

3, fumigation method

For some families that are not suitable for opening doors and Windows several times a day, and without air conditioning, fans and other modern appliances, fumigation can be used to disinfect the indoor air, and the indoor air will continue to be sealed for 2 hours after fumigation, and then the window will be opened for 15 minutes.

Method 1: Prepare 5-10ml/㎡ of vinegar, add 1-2 times of water, close the doors and Windows, heat and fumigate until the vinegar evaporates;

Method 2: Take pure lactic acid 12ml/100㎡, add the same amount of water, close the doors and Windows to heat fumigation.

For patients with severe "winter hypoxia" without diabetes and other contraindications, they can drink sugar water with plain water when they open the window to breathe, and take vitamin C tablets 0.3-0.6g and vitamin E capsules 100-200mg orally to supplement the nutrient supply of the brain and limbs.

5, oxygen

   Simple oxygen bag or oxygen generator, quickly enable oxygen generation device to relieve hypoxia symptoms. However, it should be noted that the oxygen concentration should not be too high, the time should not be too long, and the use can be stopped when the symptoms are relieved.

Attention:

  For those who have the symptoms of "winter hypoxia" and have repeated colds and fever, they should go to the hospital to ask the doctor for further treatment;

  For the original suffering from respiratory system, cardiovascular system disease complicated by "winter hypoxia", once found, should be rushed to the hospital with conditions.