How did the autumnal equinox solar terms come from, and which parts of autumnal equinox health care can't be frozen?

How did the autumnal equinox solar terms come from?

There are two meanings:

First, according to the four seasons in ancient China, which started with vernal equinox, slight summer heat, cold dew and first frost, the sunset in beginning of autumn falls within 90 days in autumn and is equally divided in autumn.

Second, at this time, the day is 24 hours, and the day and night are equally divided, each with 12 hours. This day is the same as "beginning of spring". On the day of "beginning of autumn", the sun basically shines on the equator of the earth. After this day, the shining position of the sun moved south, and the map of the northern hemisphere became shorter during the day and longer at night.

In ancient China, beginning of autumn was divided into three stages: "Stop when it thunders; Second, wait for scorpion blank households; Wait until the water is dry. " The ancients thought that thunder was due to abundant qi and blood, but beginning of autumn's post-Yin qi just began to be abundant, so the thunder stopped. The word "blank" in the second stage means fine soil, because the temperature turned cold, and the secluded small insects just started to move in the Tibetan cave, and the cave was sealed with fine soil to prevent the cold from invading. "The water began to dry up" means that the precipitation has just begun to decrease. Due to the dry weather and rapid evaporation of water vapor, the water flow in lakes and rivers is getting less and less, and some swamps and puddles are dried up.

Autumn equinox health care three can not be frozen.

foot

The foot is the farthest from the cardiovascular system in all parts of the body, so blood night walks the most, and the foot gathers many meridians all over the body. Therefore, it is often said that "cold feet make the whole body cold". When the feet are cold, the body's resistance will be reduced, and it is very likely that the disease will take advantage of it. Therefore, it is a good choice to soak your feet before going to bed in autumn.

navel

Traditional Chinese medicine calls the navel a sacred spot. Warming this acupoint can inspire human qi and blood, especially for some people who are deficient in spleen and stomach, afraid of cold and prone to diarrhea. They should pay attention to cold and warmth in this position, and they can also often apply hot compress to navel to dispel cold, warm kidney and strengthen yang.

head

You'd better wear a hat when you go out in autumn. When washing your hair, the tap water is a little hotter than usual, and you can't see the wind when you sweat on your forehead. This is because the head, as the "meeting of yang" of the human body, is one of the richest parts of the whole body. When you catch a cold, most of your qi and blood will evaporate.

People with cardiovascular and cerebrovascular diseases, people with cardiovascular and cerebrovascular diseases in their limbs, people with tepid limbs and people with infectious colds should be especially vigilant in these aspects.