The dog days of summer are here!
Source: CCTV News, People's Daily, Popular Science China, etc. Drawing: Huo Huo (hlxkitty) Tool: Edraw Brain Map
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What are the dog days of summer?
Dog Days is the hottest time of the year. At this time, the temperature is high, the air pressure is low, the humidity is high, and the wind speed is low. The "steaming on top and cooking on the bottom" mode is activated in various places.
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The dog days of summer are so hot that they become dogs
The English translation of Dog Days is Dog Days. Because the ancient Romans believed that the intense heat in July and August was caused by the sun and Sirius (The Dog Star), some netizens literally translated it as "hot as a dog".
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"Suitable" for the dog days of summer
Drink hot water or warm tea
The evaporation of sweat removes heat from the body's surface. Drinking hot tea can promote sweat gland secretion and help relieve summer heat, but hot tea should not exceed 60°C.
Soak your feet before going to bed
Washing your feet with hot water before going to bed can regulate yin and yang, warm and unblock meridians, increase clearness and reduce turbidity, strengthen the spleen and stomach, and alleviate the symptoms of bitter summer.
Go to bed late and get up early
Summer is the most suitable time to go to bed late and get up early. It is best to go to sleep before 11:30 pm, get up at 6-7 am, and rest for 0.5-1 hour at noon.
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"Taboos" during the dog days of summer
No windows for ventilation
Indoors with poor ventilation can easily lead to heat stroke, and poor air quality can easily cure diseases.
suggestion
Open windows for ventilation more than twice a day, for 15-30 minutes each time.
The air conditioner blows on
Direct air blowing against the air conditioner will cold the neck and back muscles, causing cervical spine problems.
suggestion
It is best not to lower the air conditioner temperature below 26°C in summer. It is best to wear a shawl when blowing the air conditioner.
Drink water quickly
In summer, people tend to sweat more. Drinking water quickly will dilute the blood quickly and put a strain on the heart at home.
suggestion
Drinking about 200ml of water each time is enough, and replenish water in small amounts multiple times.
Excessive consumption of cold drinks
Appropriate amount of cold drinks can relieve heat and reduce body temperature. Excessive drinking can cause gastric submucosal vasoconstriction and cause stomach problems.
suggestion
Drink an appropriate amount of cold drinks, and warm water is suitable for rehydration.
Take a cold shower
The stimulation of cold water can cause accelerated heartbeat, increased blood pressure, muscle contraction, mental stress, etc.
suggestion
The appropriate bathing water temperature is 35℃-40℃, and the bathing time should not be too long.
unstable emotion
High temperatures can easily make people impatient and may induce cardiovascular disease.
suggestion
Keep your mood calm. When you are emotional, you can divert your attention to eliminate bad emotions.
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Dog days of summer, a good time to lose weight
During the dog days of summer, the human body's yang energy is at its strongest and metabolism is at its fastest. Coupled with the hot weather, people lose appetite and eat irregularly, which may lead to weight loss to a certain extent.
Pay attention to exercise
The body sweats a lot after sleeping, so it is not suitable to do some sweaty exercises.
Outdoor exercise can be done in the early morning or in the evening after the sun has set.
After sweating a lot during exercise, dry yourself with a towel in time and put on dry clothes. Do not drink ice water immediately.
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Three stages of heatstroke symptoms
Premonitory heatstroke
(uncomfortable)
Symptoms such as dizziness, nausea, excessive sweating, limb weakness, and unresponsiveness may occur.
At this time, the body temperature generally does not exceed 37.5℃
Mild heat stroke
(syncope)
Symptoms such as rapid pulse, syncope, pale complexion, rapid breathing and even shock may occur.
At this time, the body temperature will generally rise to 38°C
Severe heatstroke
(terrible)
Symptoms such as no sweating, drop in blood pressure accompanied by fainting, coma, cramps or high fever.
At this time, the body temperature can exceed 40°C
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How to prevent heatstroke?
The weather is hot and sweating increases. Bath frequently, change clothes frequently, and replenish water in time.
Reduce going out during high temperature periods, and if you go out, take measures to prevent heatstroke
Go to bed late and get up early, take a nap at noon
Eat a light diet. You can eat more peaches, bayberry, bitter melon, tomatoes and other foods that can clear away heat, quench thirst, replenish qi and reduce internal heat.
Keep your mind pure and happy, avoid irritability and anger, and avoid emotional heat stroke
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What should I do if I have heatstroke?
Quickly get out of the environment of high temperature, high humidity, and sunlight, and go to a cool, ventilated place to lie down quietly
Avoid high-light exercise and heavy physical labor
Rapidly lower core body temperature and strive to reduce core temperature to below 39°C in about half an hour
Timely replenish salty refreshing drinks, such as light salt water, cold watermelon water, mung bean soup, etc.
Mild cases can recover after the above treatment, while severe cases need to go to the hospital for diagnosis and treatment.
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