How many days are there in dog days every year?

The 40-day "dog days" is the general term for the first, middle and last dog days, and it is the hottest season in a year. It appears from mid-July to mid-August in the solar calendar every year.

From summer to the third Geng day in the future to the day before the fourth Geng day. The third Geng Day was the first day of the first ambush. The fourth Geng day after the midsection, the second volt and the summer solstice to the first Geng day after beginning of autumn.

The fourth Geng Day is designated as the first day of midsection, and for beginning of autumn before July of the lunar calendar, midsection is 10 day. For the beginning of autumn season after July of the lunar calendar, midsummer is 20 days.

Last time, last time and the day before the first Geng Day to the second Geng Day after beginning of autumn. The second Geng day is designated as going out, that is, the end of the dog days.

In summer, people have long activities, sweat a lot and consume a lot. They should eat more nutritious foods such as chicken, duck, lean meat, fish and eggs to meet the needs of human metabolism.

Seasonal vegetables in summer, such as lettuce, cucumber and tomato, have high water content. Fresh fruits, such as peaches, apricots, watermelons and melons, have a water content of 80-90% and can be used to replenish water.

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