4hw.org: today, the summer solstice is one of the traditional 24 collections in China. It's June 22 in public every year. The summer solstice, when the heat is over, has the longest day. It's sunny. Let's take a look at some common sense about the summer solstice!
The origin of the summer solstice
The summer solstice is the earliest solar term among the 24 solar terms. In the seventh century B.C., the sun and shadow were measured in the guise, and the summer solstice was determined. The summer solstice begins on June 21 (or 22) and ends on July 7 (or 8). According to the copy of "abide by the constitution" it is said that "the sun reaches to the north, the day is long, and the shadow is short, so it is called the summer solstice. To the extreme, too. On the day of summer solstice, the position of direct sunlight on the ground reaches the northernmost end of the year, almost directly on the Tropic of cancer (23 & deg; 26 \ '), and the day in the northern hemisphere reaches the longest, and the longer the day is northward. For example, Haikou in Hainan Province is about 13 hours long, Hangzhou is about 14 hours, Beijing is about 15 hours, and Mohe in Heilongjiang Province is over 17 hours. After the summer solstice, the sun's direct position on the ground gradually moved to the south, and the days in the northern hemisphere gradually shortened. There is a saying among the people that eating noodles after summer is a short line in a day. At this time, the southern hemisphere is in the middle of winter.
When is the summer solstice
June 21 or 22 of the Gregorian calendar is the summer solstice.
How many days are the dog days after the summer solstice
"Three volts" is the hottest day of the year. "Fu" means that Yin Qi is forced to hide underground by Yang Qi. "Three volts" is a general term for the first, the middle and the last, which appears every year from the middle of July to the middle of August in the Gregorian calendar. According to the climate law of the Chinese lunar calendar (lunar calendar), it has been stipulated by predecessors as follows: 'the third day after the summer solstice is the first day of ambush, the fourth day of ambush is the second day of ambush, and the first day after the beginning of autumn is the last day of ambush (the third day of ambush), with a total of 30 days per ten days of ambush. In some years, if the average period is 20 days, there are 40 days in total.
A period of time from the third day 2 to the day before the fourth day after the first summer solstice. The third day is the first day of ambush. A period of time from the fourth day after the second summer solstice to the first day before the third Autumn Festival. The fourth day of Geng is the first day of Zhongfu. For those who start the autumn before the seventh month of the lunar calendar, Zhongfu lasts for 10 days; for those who start the autumn after the seventh month of the lunar calendar, Zhongfu lasts for 20 days A period of time from the first day of the first Geng day to the day before the second Geng day. The second day of Geng is the end of the day of ambush.
Ingredients for summer solstice
What to eat
1. It's better to eat light food, more miscellaneous grains, fresh vegetables, hot fruits in summer and some foods that can relieve heat and invigorate Qi, stimulate body fluid and quench thirst, such as tomatoes, watermelons, bayberry, melons, strawberries, peaches, plums, noodles, mung beans, red beans, cabbage, celery, Luffa, mung bean sprouts, winter melons, carrots, bitter melons, pork, chicken, duck meat, rabbit meat, crucian carp, dates, dark plum And so on.
2. Eat a small amount of food, chew carefully and swallow slowly, not too full. Because of the hot climate in summer, people's digestive function is relatively weak, so we should take measures according to the time.
3. With the coming of this high temperature season, the metabolism of human body is more vigorous, which will sweat a lot and consume air and hurt body fluid, and it is easy to get heatstroke. Therefore, lotus leaves, job's tears, lentils, lotus seeds, lilies, Yuzhu, ginseng, Huaishan, Ophiopogon japonicus, asparagus and so on can be used in traditional Chinese medicine.
What to avoid
1. It's not suitable to eat too much fat, sweet and thick taste, so as to avoid heat, wind and acne.
2. Do not overeat hot food, such as pepper, pepper, green onion, raw garlic, ginger, mustard, fennel, cinnamon, etc., to avoid heat and fire.
3. Do not over eat raw and cold fruits, ice cream or frozen drinks to avoid damaging the spleen and stomach and affecting the digestive function of the body.