What is the standard in winter?

The first day when the average daily temperature is lower than 10℃ for five consecutive days is the meteorological winter.

The time in the northern and southern hemispheres is different. In the southern hemisphere, winter is in June, July and August; In the northern hemisphere, winter is in 1 1, 12 and 1 3 months. In China, winter begins in early winter and ends in early spring. Westerners usually call the winter of solstice the winter of spring. From the climatological point of view, it is winter when the average temperature is below 10 degrees Celsius for five consecutive days.

The cold weather in winter reduces the blood circulation of various tissues, so many people are reluctant to move when they get home, get into bed or nest on the sofa. This is not right. Slow blood circulation will make you feel colder. You can do some warm-up exercises at home, such as yoga, which is soothing, light and slow, can promote blood circulation and is suitable for home.

Precautions for keeping warm in winter

1, the coat doesn't fit the waist.

As the saying goes, "cold comes from the soles of your feet", and keeping warm in autumn and winter should start from the lower body. However, many coats only reach the waist, which leads to the lower body not being kept warm, and the temperature difference between the upper and lower bodies increases, resulting in poor blood circulation, which in turn leads to getting colder and colder. It is best to wear a tunic, and it is best to increase the thickness of the lower body clothes.

The clothes are wrapped too tightly.

The air layer between each layer of clothes has a good effect of isolating cold air. If the clothes are tightly wrapped, there will be less air between layers of clothes, but the heat preservation effect is not obvious, which makes people feel cold. In addition, too tight underwear will also affect the flow of lymph and blood, making people colder.