Dog days is a traditional solar term in China, which refers to the three stages in summer, which are divided into initial, intermediate and final stages. According to the lunar calendar, the initial lodging usually starts from the first 1 1 day after long summer, the middle lodging starts from the second1day after long summer, and the final lodging starts from the third1day after long summer. Therefore, the dog days generally appear between mid-July and mid-August in the Gregorian calendar.

Dog days are the name of a climate phenomenon used in some areas of China, which represents the hottest day in summer. At this stage, the temperature is usually very high, and the weather is hot and sultry, often accompanied by high humidity and strong sunshine. This is a lively and hot summer period for people.

People often pay special attention to keep healthy and avoid heat-related health problems such as heatstroke. During this time, many people will take the summer vacation.

For example, go to cool places such as beaches, mountains, lakes, etc., or find a well-ventilated environment for summer vacation. In addition, people will also pay attention to diet aftercare, drink more water, eat light and digestible food, and supplement water and nutrition.

In a word, dog days are the hottest period in summer in China, so we need to pay attention to heatstroke prevention and keep healthy.

1, the origin of dog days

The origin of dog days can be traced back to the ancient farming society in China. The ancients observed that for a period of time in summer, the weather was particularly hot, the sun was scorching, crops grew rapidly, and it was also a period prone to diseases. Therefore, people began to divide this period into three stages, which are called dog days.

According to records, the dog days first appeared in the Southern and Northern Dynasties, that is, between the 4th and 6th centuries. The ancients corresponded the first, middle and last days to long summer, Xiaoshu and Dashu in the summer calendar respectively.

The initial lodging usually starts from 1 1 day after long summer, the intermediate lodging starts from 2 1 day after long summer, and the final lodging starts from 3 1 day after long summer, and each stage lasts for1day.

In ancient times, the dog days were considered to be the period when the yang was the most vigorous and the yin was relatively weak. It is believed that the body is vulnerable to external heat evil in dog days, so it is prone to heatstroke and other health problems related to high temperature.

In order to prevent the occurrence of diseases, people will adopt some special eating and living habits, such as drinking more cool drinks and avoiding long-term activities in the scorching sun.

2. Traditional solar terms

With the passage of time, the dog days have gradually become one of the traditional solar terms in China, and are also regarded as a special climate phenomenon, playing an important role in folk culture. Although the lifestyle and environmental conditions of modern people have changed a lot, the dog days are still regarded as the hottest period in summer, which attracts people's special attention.