I. Introduction
The so-called "dog days" refers to the "dog days" of the lunar calendar, which is the hottest period of the year. It can be understood as "squatting" means that the weather is too hot, so it is better to squat than to move. However, the dog days are called "dog days" and there are also many cold factors. The dog days are the hottest thirty or forty days in a year in the Central Plains. The dog days are calculated according to the lunar calendar, between the middle and late July and the early August of the solar calendar.
Second, the date calculation
Dog days, one volt is ten days, counted by days. Therefore, the dog days are divided into three days, namely the third day and the first day from summer to the future.
Third, diet.
Chinese medicine believes that "summer dampness should be cleared up." In hot summer, people like cold drinks and drink plenty of water, so that moisture invades the human body, while external moisture enters the body, making water wet and invigorating the spleen, lifting the spleen and stomach, causing digestive dysfunction, stagnant water and loss of appetite. Dampness in summer is very harmful to the spleen, and bitter food has the effect of purging dryness, so it is not advisable to eat more, so it is advisable to eat more sweet and cold or sweet and cold in daily diet.
And summer returns to the heart, but the heart likes cold and should be sour, so eat more acidic food in summer. In summer, people should eat more sour and sweet food and try not to eat spicy and warm food. It is also necessary to avoid eating too many cold drinks, which will harm the healthy qi in the human body and induce diseases.