When the weather turns cooler, you will find many dew drops on the ground and leaves in the early morning, which is called White Dew because the water vapor condenses on them during the night.

White Dew is actually a sign that the weather has turned cooler. At this time, people will clearly feel that the hot summer has passed, and the cool fall has arrived. The temperature difference between day and night can be more than 10 degrees. Yang qi is in the summer solstice reaches its peak, things will be opposite, yin qi also rise at this time. To the white dew, yin gas gradually aggravated, the morning dew with the increasingly thick, condensed into a layer of white droplets, so it is called white dew.

The saying goes: "Eighteen pots in the summer heat, do not show your body in the white dew." The meaning of these two sentences is that the summer heat is still hot, every day must use a basin of water to take a bath, after eighteen days, to the white dew, don't bare shoulders and bare body, so as not to catch cold. There is also a saying: "white dew white fan fan, autumn equinox rice show Qi." Means that, before and after the white dew if there is dew, the late rice will have a good harvest.

White Dew, pay attention to changes in temperature with the addition or subtraction of clothing

White Dew is a symbol of the weather cooler season, although the daytime temperature can still reach up to more than 30 degrees, but the night will still be cooler, the temperature difference between day and night is greater, if it rains, the temperature drop is more pronounced.

If you dress too bare at this time, the cold air will irritate the skin, the human body due to cold and immunity decline, the inability to resist the cold evil, prone to lung and respiratory diseases, such as fever, coughing, bronchitis, etc., and the serious may be the emergence of pneumonia and other problems.

Therefore, it is necessary to pay attention to the morning and evening to add clothing and quilts, can not bare the chest, sleep and lie down not greedy for cold, remove the cool mat, close the windows and air conditioning, change into a long coat and long pants to sleep, will be thin quilts prepared in the bedside, is very necessary.

Particularly patients with cardiovascular disease, chronic bronchitis patients, asthma patients and arthritis patients, frail elderly and children, pay more attention to the changes in temperature with the addition or subtraction of clothing. The so-called "white dew do not show body, morning and evening to urge" is the truth.

Autumn wind cooling at the same time, the moisture in the air is also blown dry, this climate feature is called "autumn dryness", because the lungs main respiratory, outside the skin, the lungs and the large intestine with the surface, so when the air humidity drops, the lungs, the large intestine and the skin bear the brunt of the impact.

Prone to dry mouth, dry lips, dry nose, dry throat and dry stools, dry and cracked skin and other symptoms, serious cases will appear due to dryness caused by nasal bleeding. Therefore, at this time of the year, we must nourish Yin and moisten the lungs to prevent the autumn dryness injury.

Baidu Encyclopedia - White Dew

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