"crouching" means being forced to hide underground, which is the hottest time of the year. Starting from summer, the third Geng Day is the first time according to the arrangement of dry and branch days.

The fourth Geng Day is Fu Zhong Fu, and the first Geng Day in beginning of autumn is the first day of Fu Zhong Fu, which lasts for ten days. The word "Geng" on Geng Day is the seventh word in ten days of "A, B, C, D, E, Ji, Geng, Xin, Ren and Gui", and Geng Day is repeated every ten days. The start and end time of the dog days is different every year, roughly from mid-July to mid-August.

The dog days are sultry and humid, which easily leads to the accumulation of moisture in the body. It is suggested that patients insist on soaking their feet before going to bed, which has a certain effect of eliminating dampness.

Matters needing attention and health preservation methods in dog days:

1, Pay attention to summer: The dog days are the highest temperature in a year, so try to avoid direct sunlight and prevent heatstroke.

2, pay attention to diet: it is recommended to eat more bitter foods, such as bitter gourd, which has the effect of clearing away heat and relieving fatigue.

3. Replenish water: Drink more boiled water and water regularly in dog days, and try to drink less juice, soda and other drinks. Drinks contain more sugar, which easily affects digestion and raises blood sugar.

4, do not drink too much: due to the high temperature in the dog days, it often causes damp heat. At this time, if you drink a lot of white wine, there will be excessive dampness and heat.

5. Moderate exercise: It is suggested that you can choose some low-intensity exercise in dog days, such as Tai Ji Chuan, which can not only achieve the effect of exercise, but also avoid the discomfort caused by high temperature. Pay attention to drinking a small amount of water many times after exercise.

6, do not take a bath: because the temperature is high in the dog days, the pores are easy to relax. Bathing will lead to pore closure, which is not conducive to the excretion of sweat gland metabolites, and it is also easy to cause diseases such as colds.