Shanghai will hit 39°C this week! The third high-temperature orange warning is coming this year, and the dog days will last for 40 days …
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yesterday
Meet in three places: plum blossom, crouching and hot summer.
The "sense of ritual" is full on the day of lodging.
Not only Shanghai
Most parts of southern China are red with heat.
The hottest day of the year officially opened.
Following yesterday’s first hot summer day.
(Maximum temperature exceeds 37℃)
At 9: 45 today
Shanghai issues high temperature orange warning signal
This is the third in Shanghai this year.
High temperature orange warning!
Affected by the subtropical high, it is estimated that the highest temperature in most areas of this city will exceed 37℃ today. Please pay attention to prevent the adverse effects of strong high temperature on industrial and agricultural production and human health, and ensure the safety of production, fire fighting and electricity consumption.
Today, "Little Orange" started work three hours early.
At 9 o’clock this morning
The temperature in most parts of the city has generally reached 33 C+
The relatively "cool" areas are still Lingang and other places in the southeast corner.
In the morning, under the burning direct sunlight,
The temperature goes up all the way.
Go straight to the hot summer line of 37℃
If nothing unexpected happens,
Today will be the ninth high temperature day in Shanghai this year.
It is also the second hot summer day.
It will be hot tomorrow and the day after tomorrow!
Why does the plum blossom meet the heat?
Is this weather normal?
For the Yangtze River Delta region, including Shanghai, plum blossom often means that the rain belt moves northward and the subtropical high "takes power", and the subtropical high is also known as the "high temperature messenger". It is a warm air mass that often exists but its position is not fixed. It is active in the ridge of high pressure in the subtropical region, and within its control, there will often be dry and hot weather with little rain.
Yesterday’s high temperature heat wave
The push behind it is the subtropical high.
According to the forecast of Shanghai Central Meteorological Observatory
See you every day in the next few days.
The extreme heat will reach its peak this Friday.
The highest temperature can reach 38℃
It will even sprint 39 C.
This wave of high temperature
Maybe it won’t be relieved until Saturday
when the time comes
The subtropical high will retreat eastward to the sea.
The highest temperature in Shanghai is expected to drop to 34℃
But the lowest temperature is still around 29℃
Night temperature high operation
Heatstroke prevention and cooling cannot be relaxed.
High temperature in summer.
It also allows "heat-shooting disease" to frequently board hot searches.
Recently, the Department of Emergency and Critical Care of Shidong Hospital in Yangpu District admitted a critically ill patient with heatstroke.
Mr. Shang, a 47-year-old decoration worker, had a sudden high fever at work in the afternoon, and his whole body was weak and unconscious. After the workers found out, they contacted 120 for emergency treatment and sent Mr. Shang to the emergency department of Shidong Hospital.
When he arrived at the hospital, the patient was in a coma, accompanied by clonic convulsion of limbs, and the core temperature was measured at 41.7 C. It was a typical heat stroke disease, and his condition was extremely dangerous. The medical staff in the emergency department immediately put the patient in a ventilated place, and used ice water, ice blankets and cold water enema for rapid and effective continuous cooling. At the same time, the convulsion was controlled, and the fluid was quickly replenished. After the temperature was reduced to below 38.5°C, it was safely transported to the Department of Critical Care Medicine.
In the Department of Critical Care Medicine, the doctor continued to give Mr. Shang temperature management, brain protection, analgesia and sedation, as well as tracheal intubation and invasive ventilation. "The patient’s condition was once very critical. Fortunately, after active treatment, the patient’s condition improved significantly, and he regained consciousness the next day and successfully evacuated from the ventilator. He has been cured and discharged." Ye Xuhui, deputy director of the Department of Critical Care Medicine of the hospital, introduced.
△ Image source: Shanghai Yangpu
Zhang Feng, chief physician of the Emergency and Critical Care Center of Jinshan Hospital affiliated to Fudan University, said that heatstroke is a serious and fatal disease caused by thermal injury factors, with a high mortality rate. "Heatstroke is a severe heatstroke, which is caused by exposure to high temperature and high humidity. The body’s body temperature regulation function is unbalanced, and heat production is greater than heat dissipation, resulting in a rapid increase in the core temperature, exceeding 40 C. It is a serious acute heat-induced disease accompanied by skin burning, consciousness disorder and multiple organ dysfunction. It is the most serious type of heatstroke.
"The prevention of heatstroke is the most important. The most effective preventive measures are to avoid high temperature, high humidity and unventilated environment, reduce and avoid the risk factors of heatstroke, ensure adequate rest time and avoid dehydration, thus reducing the incidence and mortality of heatstroke." Zhang Feng pointed out, "Once the symptoms of heatstroke appear, you should immediately get out of the hot environment, move the patient to a ventilated and shady place and lie flat, with his head tilted to one side, unbutton his collar and belt, and take off his coat to facilitate breathing and heat dissipation. If possible, he can be sent to a room with an electric fan or air conditioner."
Zhang Feng reminded that once the body temperature continues to rise, it even exceeds 40°C；; Blurred consciousness, delirium and even coma; Muscle spasm or epilepsy; Persistent headache; Breathing shallow and fast; Nausea; Extreme weakness and other symptoms, should be sent to the hospital as soon as possible, so as not to delay the illness.
It is also known that Chinese medicines such as chrysanthemum, honeysuckle, lotus leaf, mint, patchouli and patchouli all have the efficacy of clearing away heat and relieving summer heat, which can prevent severe heatstroke to some extent.
In this regard, health meteorologists reminded that in response to high temperature days, it is necessary to pay attention to high temperature warning. First of all, we must reduce the length of outdoor and outdoor work and replenish water and salt in time; Turn on the air conditioner in time, pay attention to the temperature difference between indoor and outdoor, and the air conditioner temperature should not be too low. It is best to have an adaptation process when entering and leaving the house, especially to remind the elderly that the night temperature in Shanghai is high, and not turning on the air conditioner has a great impact on the body; Don’t rest in narrow and closed spaces such as vehicles for a long time, especially pay attention to not leaving children in the car when adults leave.
The dog days in Shanghai will last for 40 days this year.
These health rumors should be clarified.
From July 11th, this year’s 40-day extended dog days officially began. The dog days usually appear between the summer heat and the summer heat, which is the highest temperature, humid and sultry time in a year. After lodging, high temperature and high humidity weather will occur frequently, and the hot mode of "roasting" in the north and "sauna" in the south will be opened. In dog days, how to keep in good health has attracted much attention, and these health rumors should be clarified:
Proverbs 1: You can "stick to it" when you feel heatstroke.
It will continue to be hot this summer, and the temperature in some areas may exceed 40 C. Under the continuous hot weather, the risk of "heat stroke" is also increasing. Many people will "stick to it" when they feel sultry and dizzy, but doing so may be fatal. On July 2, a tour guide in Beijing died of heatstroke. At that time, he took a delegation to visit the Summer Palace for nearly 2 hours at high temperature. Afterwards, his colleagues recalled that the tour guide had felt a little uncomfortable after leading the study group into the Summer Palace for one hour, but he still insisted on taking the students of the team to the bus outside the park.
Many people mistakenly believe that they can "persist in persistence" when they just feel uncomfortable. As everyone knows, the damage caused by the summer heat is not continuous accumulation. When the summer heat exceeds its own adjustment ability, the body will reach the "collapse point" in an instant, resulting in serious symptoms such as fainting and convulsions, and even death. Dizziness is the earliest manifestation of heatstroke in the early stage, when the cranial temperature has increased. Therefore, if you feel dizzy, suddenly faded, and have no spirit, don’t think about taking a rest. At this point, you should quickly lie flat in the shade, rest, drink some cold water properly, and seek medical attention in time if it does not relieve after 10-30 minutes.
Proverbs 2: heatstroke prevention and cooling only need to pay attention to temperature.
In fact, compared with high temperature, hot and humid weather is more likely to make people "unconsciously" suffer from heatstroke. "Feeling hot" and "high temperature" are two different things. The temperature predicted by the weather is only the air temperature, and the temperature actually felt by the human body is called "somatosensory temperature", which is the temperature felt by the body under the comprehensive influence of temperature, wind speed and humidity. When the humidity increases, the somatosensory temperature will increase obviously. For example, when the temperature is 32℃ and the humidity is 30%, the human body temperature is about 32℃; When the temperature is still 32℃ and the humidity rises to 60%, the somatosensory temperature will be close to 38℃; When the temperature rises to 35℃ and the humidity is 60%, the somatosensory temperature can reach 45℃! Therefore, in addition to high temperature weather, high temperature and high humidity weather is more likely to make people "unconsciously" heatstroke.
Therefore, in order to prevent heatstroke and cool down, we should avoid high temperature and high humidity. Avoid the scorching sun, do not exercise too much in high temperature or scorching sun, reduce activities in humid weather, consciously control the humidity in the environment, and properly turn on the "dehumidification" function of air conditioner or dehumidifier.
Proverb 3: Turn on the air conditioner and don’t open the window for ventilation.
The hot weather has caused many people to turn on the all-weather air conditioning mode, and close the windows and doors to blow the air conditioner indoors. However, staying in a humid and stuffy room with poor ventilation for a long time is more prone to heatstroke, and only turning on the air conditioner without opening the window for ventilation will make the air quality worse and more prone to illness.
In summer, the air conditioning temperature should not be lower than 26℃, and it should be avoided to blow the air conditioner for a long time, avoid blowing at the air outlet of the air conditioner, and avoid direct blowing after sweating to avoid the neck and shoulder muscles being exposed to cold wind for a long time. Open the window for ventilation more than twice a day for 15 to 30 minutes each time. Even in summer, don’t let the wind blow straight when you open the window to sleep at night.
Proverbs 4: Eating only fruits and vegetables and cold drinks in the dog days can help you lose weight.
The weather is sultry, and many people eat vegetables, fruits and cold drinks every day, but this practice is unhealthy. Only paying attention to fruits and vegetables is difficult to meet the basic nutritional needs of human body such as carbohydrates, minerals and protein. The high temperature in summer accelerates the metabolism of human body, and the consumption of protein increases greatly. If protein is not supplemented in time, it will adversely affect the endocrine system, digestive system and immune system of human body, and will lead to physical decline. In summer, human blood vessels are in a state of expansion, and sudden consumption of a large number of cold drinks will cause rapid contraction of blood vessels, causing blood pressure fluctuations and easily inducing cardiovascular and cerebrovascular accidents.
In summer, we should also have a balanced diet and eat more vegetables, fruits and whole grains. In summer, the daily intake of protein should be 70g-90g, and more than half of it should be high-quality protein which can be easily digested and absorbed by human body, such as fish, shrimp, lean meat, chicken, duck, eggs, milk and bean products. In addition, people’s discomfort such as fatigue and loss of appetite in summer may also be related to potassium deficiency. Therefore, you can eat more fresh fruits and vegetables such as green onions, celery, edamame, strawberries and apricots rich in potassium. Drink cold drinks in moderation. You can drink some sour plum soup, mung bean soup, honeysuckle tea, mint tea or lemon tea, but don’t drink a lot of iced drinks and don’t be greedy for cold.
Proverbs 5: Exercise in summer should stick to sweating.
The concept of "practicing three or nine in winter and three days in summer" has been sought after by many people. Many people think that it is necessary to persist in exercising until sweating. When the ambient temperature rises in summer, the human body sweats a lot in order to regulate its body temperature. Normal sweating helps to dissipate heat, metabolism and keep body temperature stable. Sweat evaporation can take away a lot of heat. Therefore, sweating is the most efficient way for human body to relieve summer heat and cool down. However, excessive sweating will lead to thick blood, which is easy to cause heart disease and cerebral infarction. Middle-aged and elderly people must not exercise excessively in midsummer.
When exercising in hot weather, we must pay attention to replenish water and promote sweat discharge. An adult excretes more than 500 ml of water from the sweat glands of the skin every day, and the amount of perspiration will be more at high temperature and during exercise. Dietary Guidelines for China Residents (2022) suggests that the suitable daily water intake for adult men with low physical activity level is 1700 ml under mild climate conditions; The suitable daily water intake for women is 1500ml. After sweating in summer, we should increase the water intake appropriately. To judge whether you have drunk enough water, you can observe the urine color: it is light lemon color, indicating that the water in the body is in the best state; Clear and colorless, water intake should be reduced appropriately; If it is brown, it needs to be replenished in time. Besides, don’t take a cold bath immediately after exercise. After sweating, the pores of the body are open, and the blood is in a state of high-speed circulation. Taking a bath immediately will cause harm to the body and skin. You should wait until the sweat is collected before taking a shower with warm water.
Proverb 6: You can stay in the summer without sweating.
Sweat is sticky and smelly when sweating, which makes people uncomfortable and stains clothes. Therefore, many people try their best not to sweat, sweat less, and look forward to staying in air-conditioned rooms, not exercising or using antiperspirant dew for a long time, but this has entered another misunderstanding. In fact, sweating in dog days is the best "tonic" for human body. Normal sweating is beneficial to health, and sweating can mobilize the function of all organs and improve circulation. Proper sweating also helps to expel dampness and heat toxin from the body, and people become full of energy.
Therefore, give your body some opportunities to sweat actively every day, and don’t stay in an air-conditioned room for a long time. When the environment is not particularly sultry, you should turn off the air-conditioning fan and enjoy the truest temperature in nature. Although summer is the main way to maintain health in dog days, you should also exercise moderately. When exercising in dog days, you should avoid high temperature and do it in a cool place. You can walk fast for an hour, jog for 30 minutes or swim for 30 minutes, etc., and it is appropriate to sweat slightly.
Comprehensive news, Xinmin Evening News, Shanghai weather release, Shanghai release, etc.
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