When is the Great Cold this year? What can’t you do on the day of Great Cold?

When is the Great Cold this year? What can’t you do on the day of Great Cold?
After the Great Cold, a new cycle begins. So when is the Great Cold this year? What can’t you do on the day of Great Cold? Let’s take a look at the following content!

When is the Great Cold this year?

The Great Cold solar term in 2021 is 4:36 on January 20, 2021 in the Gregorian calendar, and the 8th day of the twelfth month in the Gengzi year in the lunar calendar.
Climate characteristics: Dahan is the coldest time of the year.
During the Great Cold, the sun's ecliptic longitude is 300°. Great Cold means that the weather is extremely cold. The period around the Great Cold is the coldest season of the year. The Great Cold occurs just after the 39th day of winter and at the beginning of the 49th day of winter. As the saying goes: "In the 39th and 49th days of winter, walk on the ice."

What can’t you do on the day of Great Cold?

During the Great Cold, indoor ventilation is not allowed
During the Great Cold, the weather is cold, but the room should be ventilated in the morning and evening to prevent bacteria and ice poison from entering. For indoor heating, sprinkle some water on the floor or put some wet towels to maintain indoor humidity. The indoor temperature should be kept at 15-20℃, not too high or too low.
Do not exercise excessively during the Great Cold
During the Great Cold season, you should avoid excessive exercise and sweating to prevent your Yang Qi from being lost with sweat and being damaged. Exercise should be done in a sunny place in a square, and the sports can be chosen according to your own preferences.
Avoid cold radiation during the Great Cold
During the Great Cold season, you should prevent the harm of cold radiation to your body. Specific measures are to stay away from overly cold walls and other objects, and stay at least 50 cm away from the wall when sleeping. If the temperature difference between the wall and the indoor temperature exceeds 5°C, the wall will often appear damp and even have small water droplets. At this time, you can place wooden boards or foam plastics in front of the wall to block and reduce negative radiation, thereby protecting the body from damage by negative radiation.

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