Is the Great Heat the beginning of the dog days? Here is the difference between the Great Heat and the beginning of the dog days

Is the Great Heat the beginning of the dog days? The hottest time of the year is the dog days, and the beginning of the hot summer season. Many people think that the Great Heat is a sign of the beginning of the dog days, but in fact, the Great Heat and the beginning of the dog days are not the same thing. Next, let’s take a look at it together.

Is the Great Heat the beginning of the dog days? The difference between the Great Heat and the beginning of the dog days

meaning

The "Three Fu" refers to the first, middle and last Fu, which is approximately from mid-July to mid-August. According to the Chinese calendar, the third Geng day after the summer solstice is the beginning of the dog days, of which the first 10 days are the first dog days. The first dog days can be as early as 20 days away from the summer solstice and as late as 30 days. The Lesser Heat is 16 days away from the summer solstice. There is a week difference between the Greater Heat and the Lesser Heat, and sometimes the time is almost the same as the beginning of the dog days, but it cannot be said absolutely that the Greater Heat is the sign of the beginning of the dog days.

time

The time of Great Heat in 2017 is 23:15:18 on July 22, 2017, the 29th day of the sixth lunar month (small month) in the lunar calendar. Great Heat: The twelfth solar term in the 24 solar terms in the lunar calendar, the sixth solar term in summer, when the sun is at 120° of the ecliptic longitude. The Great Heat falls around the middle of the dog days of summer, which is the hottest solar term of the year.
The first dog days of 2017: 2017-07-12 to 2017-07-21 (10 days)
The first dog days of summer: According to the Chinese calendar, the first dog days of summer is the real beginning of summer. The first dog days are fixed to be 10 days, starting from the third Geng day after the summer solstice (called the beginning of the dog days). The beginning of the dog days marks the beginning of real summer. The temperature is extremely high on the first two days of the dog days, so the focus of health care during the first dog days is to prevent heatstroke.

Tips on preventing heat stroke during the dog days

After the beginning of the dog days, the humidity on the ground increases. The ground absorbs more heat every day and emits less heat. The heat in the surface layer accumulates, so it gets hotter day by day. The temperature is extremely high in the first two days of the dog days, so the focus of health care during the first dog days is to prevent heatstroke. At this time, you should arrange your work and rest time reasonably, avoid being exposed to the sun or staying in a high temperature environment for a long time, use a parasol and wear a sun hat when going out, avoid strenuous exercise, and ensure a nap. It is best to replenish water in small amounts and multiple times throughout the day, and you can choose light salt water, green tea, mung bean soup and other refreshing drinks. If you experience symptoms of heatstroke such as dizziness, palpitations, nausea, and vomiting, move to a cool place quickly, undress, apply cold compresses to your head, drink cool drinks, and take Ren Dan or Shi Di Shui. If a weak or sick person, an elderly person or a child suffers from heatstroke, he or she should be sent to the hospital for emergency treatment immediately.