When does the dog days start counting?

It started in the summer of the third day of Geng Day.

The dog days, which appear between the light summer heat and the hot summer heat, are the time when the temperature is the highest and it is humid and sultry in a year. Three volts can be divided into initial, middle and final volts, and its date is determined by the coordination of 24 solar terms and the dates of dry and branch. After "entering the volt", many places in the country will enter the continuous high temperature mode.

The traditional almanac stipulates that "counting from the third Geng day of the summer solstice", that is to say, "counting down from the summer solstice until the third Geng day" began to crouch. The "Geng Day" here refers to the days prefixed with "Geng" in the ancient "Ganzhi Jiri Law". "crouching" means being forced to hide underground; This also means that it is too hot to move.

The length of dog days mainly lies in the difference between middle and next days. Because the third Geng day (the first autumn) after the summer solstice solar terms occurs at different times every year, the number of days of the Mid-Autumn Festival is also different. The incubation time is long or short, which may be 10 day or 20 days. So there are two situations: some years are 30 days in dog days, and some years are 40 days.

Preventive measures in dog days:

1. In summer, strenuous outdoor and daytime activities, such as mountain climbing, are not recommended. It is recommended to choose sports activities such as swimming and jogging in the morning and evening.

2, drink more boiled water, and drink water regularly, don't wait until you are thirsty, and don't drink too much after you are thirsty. Drink less fruit juice, soda and other drinks, which contain more saccharin and electrolyte.

3, the diet should not be too light. In summer, natural people have long activities, sweat a lot and consume a lot, so they should eat more nutritious foods such as chicken, duck, lean meat and fish eggs.

Seasonal vegetables in summer, such as lettuce, cucumber and tomato, have high water content. The water content of fresh fruits such as peaches, apricots, watermelons and melons is 80-90%.

4. The temperature difference between indoor and outdoor air conditioners should not be too large. The temperature difference between indoor and outdoor air conditioners should not exceed 5 degrees. Even if the weather is hot again, the indoor temperature of the air conditioner should not be lower than 24 degrees.

Baidu Encyclopedia-Dog Days