"Tingyi Ting" may be fatal, healthy China | Experts: Feeling heatstroke and high temperature | Ability | May be

CCTV, Beijing, July 4 News Since the beginning of summer this year, extreme high temperature weather has occurred frequently in many places in my country. Starting from July 5, a new round of high temperature weather will affect the north again. The daily maximum temperature in central and southern Hebei, Beijing, Tianjin, northern Shandong and northern Henan can reach 37 ℃ ~ 39 ℃, and the temperature in some areas may exceed 40 ℃. The risk of "heat stroke" is also increasing in the ongoing hot weather. On July 2, a Beijing local tour guide was sent to the doctor due to heatstroke during a tour of the Summer Palace. The rescue failed and died. According to the Beijing Municipal Health Commission, the recent Beijing 120 emergency transport heatstroke-related cases increased significantly.

Many people may wonder why they still suffer from heatstroke even though they already care about it? How to effectively avoid heat in hot weather? How to "stop losses in a timely manner" in case of heatstroke and avoid the occurrence of heat stroke? In response, a reporter from China National Radio and Television interviewed Meng Qingyi, the chief physician of the Emergency Department at the General Hospital of the People's Liberation Army of China.

Wet and hot weather is more likely to make people "unaware" of heatstroke

"Feeling hot" and "high temperature" are two different things. Meng Qingyi introduced that the temperature predicted by the weather is only the air temperature, while the actual temperature felt by the human body is called "perceived temperature", which is the temperature felt by the body under the comprehensive influence of temperature, wind speed, humidity, etc. When humidity increases, the perceived temperature will significantly increase.

For example, when the temperature is 32 ℃ and the humidity is 30%, the perceived temperature of a person is approximately 32 ℃; When the temperature is 32 ℃ and the humidity reaches 60%, the perceived temperature will approach 38 ℃; When the temperature is 35 ℃ and the humidity is also 60%, the perceived temperature can reach 45 ℃. Therefore, in addition to hot and sunny weather, hot and humid weather is more likely to make people "unknowingly" suffer from heatstroke. To effectively prevent heatstroke, in addition to avoiding exposure to scorching sun and not engaging in excessive activities under high temperatures or scorching sun, special attention should also be paid to reducing vigorous activities in humid weather, consciously controlling humidity in the environment, and appropriately using the dehumidification function of air conditioning.

Heat stroke and dizziness, we must not stand up for it

In the early stages of heatstroke, dizziness is the earliest manifestation. "Remember, don't just think about standing up and then taking a break." Meng Qingyi emphasized that many people believe that they can "stick to it" when they just feel uncomfortable, but little do they know that the damage caused by tropical heat to the body is not like a slope, accumulating and increasing continuously. But it's a "right angle" - when the damage exceeds the self-regulation ability, the body will instantly reach the "point of collapse", leading to serious symptoms such as fainting, convulsions, and even death.

Meng Qingyi explained that the human body is a very precise "instrument", and "dizziness" is a signal sent by the brain to us, telling us that "the cranial temperature has increased" and we need to intervene in a timely manner. Therefore, once dizziness occurs outdoors and the child suddenly "wilts" and lacks energy, attention should be paid to whether it is a symptom of heatstroke. At this time, young people should quickly lie down and rest in a cool place, drink some cold water appropriately, and if there is no relief after 10-30 minutes, seek medical attention in a timely manner.

The elderly body temperature regulation ability deterioration dizziness quickly sent to the doctor

Elderly people who experience symptoms of heatstroke such as dizziness, regardless of whether they are currently experiencing relief, must not judge on their own and seek medical attention promptly.

Meng Qingyi explained that elderly people's ability to regulate body temperature deteriorates and their ability to dissipate heat decreases. In weather where most people do not feel very hot, heat stroke may also occur. Moreover, the symptoms of elderly people are more complex. Sometimes their body temperature may not be too high, but their visceral temperature has already risen and their organs may have been damaged. "But these are difficult to distinguish at home. Therefore, Meng Qingyi suggests that elderly people who experience discomfort such as heatstroke should not handle it at home." We have seen many elderly people say they feel they can get through it, but when they can't get through it, it's too late to seek medical attention. "

Drinking enough water is the best "magic weapon" for relieving heat and preventing diseases

Sweat evaporation can take away a large amount of heat, so sweating is the most efficient way for the human body to relieve heat and cool down. Therefore, in hot weather, it is important to pay attention to replenishing water and promoting sweat discharge.

According to the Chinese Dietary Guidelines for Residents, the recommended daily water intake for adult males with low levels of physical activity under mild climate conditions is 1700 milliliters; The appropriate daily water intake for women is 1500 milliliters. But daily water intake also needs to be adjusted appropriately based on age, temperature, labor or exercise, and sweating. To determine if you have drunk enough water, you can observe the color of your urine: it is a light lemon color, indicating that the body's water is in its optimal state; Clear and colorless, the intake of water should be appropriately reduced; If it is brownish yellow, it is necessary to replenish water in a timely manner.

"There is the simplest way to determine whether water is drunk enough," Meng Qingyi said. "If the general population feels thirsty, they can drink water, after all, the feedback from the body is the best guidance teacher." Drinking water does not have the best time, any time is okay. It is recommended to follow the principle of small amounts and multiple times. Elderly people should drink warm water, and young people working outdoors can drink some cold water appropriately. Replenishing water can also lower the temperature of stomach and other organs. Patients with chronic kidney disease and cardiovascular disease need to consult a doctor and control their water intake reasonably.

Meng Qingyi also emphasized that patients with skin diseases such as psoriasis have sweat gland damage, poor sweating, and hyperthyroidism often have poor heat dissipation. Special attention should be paid to heatstroke prevention and cooling.

[Live Announcement] From July 5th to 7th, from 20:00 to 22:00 every day, Dr. Meng Qingyi will be visiting the live broadcast room of the "CCTV Nutrition Course" on CCTV, interacting with netizens online and answering questions on-site. Participate in the live broadcast and have the opportunity to receive a health gift package from Professor Meng Qingyi! Scan the code to schedule a live broadcast: