Group 1 - The article discusses the health risks associated with summer heat and humidity, emphasizing the importance of distinguishing between "heat" and "humidity" related illnesses to effectively prevent and alleviate symptoms of heatstroke [1][2] - Symptoms of "heat dampness" include chills, fever, lack of sweat, body aches, nausea, and poor appetite, often caused by excessive exposure to cold environments or consumption of cold foods [2] - Symptoms of "heat" include body heat, flushed face, rapid breathing, and dry mouth, typically resulting from prolonged outdoor labor in high temperatures [2] Group 2 - The article provides a list of traditional Chinese medicine remedies for treating heat dampness, such as Huo Xiang Zheng Qi Water, which can alleviate symptoms like nausea and abdominal pain [3][4] - It also mentions remedies for heat-related illnesses, including Liu Yi San, which can relieve symptoms like thirst and dizziness caused by heat [5][6] - The article suggests herbal teas and food remedies, such as Huo Xiang Pei Lan Tea and various congee recipes, to help cool the body and prevent heat-related issues [9][10][13][14] Group 3 - Dietary recommendations include increasing the intake of potassium-rich fruits and vegetables, as well as foods high in B vitamins and vitamin C to replenish nutrients lost through sweating [15] - The article highlights the benefits of bitter foods and beverages, which can help clear heat and improve appetite during the summer [15]

Group 1 - The current hot season, known as "Da Shu," is a good time for "yang nurturing," with methods like sunbathing being popular [1] - Not everyone is suitable for sunbathing; individuals with weak constitutions, the elderly, and those with skin allergies should avoid it [1][3] - People with underlying health conditions such as hypertension, coronary heart disease, and hyperlipidemia are also advised against sunbathing [1] Group 2 - For individuals with a cold constitution, sunbathing can be beneficial, but precautions must be taken regarding weather, duration, and post-sunbathing care [3] - It is recommended to start with 5-10 minutes of sun exposure, gradually increasing to 15-30 minutes, 2-3 times a week [3] - After sunbathing, individuals should avoid cold showers and air conditioning immediately, allowing the body to cool down naturally [3] Group 3 - During the hot season, outdoor workers like delivery personnel are at high risk of heatstroke [4][6] - Symptoms of heatstroke include headache, dizziness, and excessive sweating; individuals should rest in a cool place and hydrate if these symptoms occur [4] - If symptoms worsen, immediate cooling measures and medical attention are necessary [4] Group 4 - Outdoor workers are advised to take proactive measures such as wearing protective clothing and taking regular breaks in shaded areas [6] - Hydration is crucial; workers should drink water regularly, preferably electrolyte-rich beverages, and avoid ice-cold drinks [6] - Alcoholic and high-sugar drinks should be avoided as they can burden the body [6]

Core Points - The article discusses the differences between heat stroke and heat exhaustion, emphasizing the severity of heat stroke and its potential life-threatening consequences [1][2] - It highlights the importance of early detection and intervention in preventing the progression from mild heat exhaustion to severe heat stroke [2] Group 1: Heat-Related Illnesses - Heat exhaustion is a gradual process with symptoms that can include excessive thirst, sweating, fatigue, dizziness, and flushed skin, while severe heat stroke can lead to high fever, convulsions, shock, and coma [1] - Heat stroke is characterized by three main symptoms: high fever, absence of sweating, and coma, with body temperatures potentially exceeding 40°C to 42°C [1] Group 2: Prevention and Treatment - Early detection, rapid cooling, and prompt medical attention are crucial in managing heat-related illnesses, as the duration of high body temperature correlates with the severity of tissue damage [2] - Recommendations for prevention include monitoring weather forecasts, reducing exposure to extreme heat, staying hydrated with electrolyte-rich fluids, and resting in cool areas when experiencing symptoms of discomfort [2]

Core Viewpoint - The article highlights the rising risk of "heat stroke" during extreme high temperatures, particularly when temperatures exceed 32 degrees Celsius, and distinguishes it from regular heat exhaustion [1][3]. Group 1: Mechanism and Symptoms - Extreme high temperatures can increase the risk of cerebrovascular diseases, with most "heat strokes" classified as ischemic strokes [3]. - High temperatures lead to changes in blood pressure and blood volume, which can result in blood clot formation due to dehydration and blood concentration [4][6]. - Symptoms of "heat stroke" include dizziness, headache, nausea, and vomiting, which can be confused with heat exhaustion [11][15]. Group 2: Differentiation from Heat Exhaustion - Heat exhaustion is characterized by a disruption in temperature regulation, with symptoms like flushed skin, dizziness, and high fever, but lacks specific neurological deficits [13]. - In contrast, "heat stroke" involves sudden neurological deficits such as paralysis, numbness, speech difficulties, and unsteady gait [15]. Group 3: Prevention and Management - Experts recommend managing emotions and maintaining a calm mindset to avoid blood pressure fluctuations during high temperatures [20]. - It is advised to avoid outdoor activities during peak heat hours and to keep indoor temperatures between 25-28 degrees Celsius while ensuring proper hydration [23].

Core Viewpoint - The article emphasizes the increasing cases of heat stroke, particularly heat stroke, due to prolonged high temperatures, highlighting its severe consequences and high mortality rate [1][3]. Group 1: Health Risks and Symptoms - Heat stroke can lead to multi-organ dysfunction and failure, with a mortality rate ranging from 14% to 65% [3]. - Initial symptoms of heat stroke include dizziness, nausea, vomiting, and excessive sweating, which can escalate to severe conditions like unconsciousness and multi-organ damage if not treated promptly [5][7]. - High-risk groups include the elderly, infants, and individuals with chronic diseases, as well as those engaged in strenuous physical activities without adequate cooling [7][8]. Group 2: Prevention and Response - It is crucial to move individuals showing signs of heat stroke to cooler environments and implement cooling measures immediately [8]. - Common misconceptions include using alcohol for cooling, which can harm sensitive skin and lead to alcohol absorption issues; instead, using lukewarm water for wet compresses is recommended [8][12]. - Self-medication with cooling drugs is less effective than hydration; drinking water or saline solutions is prioritized for recovery [10][12].

Group 1 - The incidence of heat stroke cases is increasing due to prolonged high temperatures, with a high mortality rate ranging from 14% to 65% if not treated promptly [1][6] - Symptoms of heat stroke can escalate rapidly from mild heat exhaustion to severe heat stroke within a few hours, necessitating immediate medical attention to prevent irreversible damage [1][3] - High-risk groups for heat stroke include elderly individuals, infants, and those with chronic health conditions, as well as people engaged in outdoor work or strenuous physical activities [6][4] Group 2 - Enclosed environments, such as poorly ventilated spaces, can significantly increase the risk of heat stroke, particularly among the elderly who may avoid using air conditioning [4][3] - Common scenarios leading to heat stroke include prolonged cooking in non-air-conditioned kitchens, extended stays in indoor hot springs, and postpartum recovery without proper ventilation [4][6] - Immediate cooling measures and hydration are critical for individuals showing symptoms of heat stroke, as self-medication with cooling drugs is often ineffective [7][6]

Core Viewpoint - The ongoing extreme heat has led to a significant increase in cases of heatstroke and cardiovascular diseases, particularly affecting vulnerable populations such as the elderly and outdoor workers [1][2][5]. Group 1: Heatstroke Incidents - There has been a noticeable rise in emergency calls related to heatstroke, especially among delivery workers and sanitation workers [1]. - Heatstroke can occur even in indoor environments with high humidity, emphasizing the need for awareness among the elderly who may not recognize the symptoms [3][4]. Group 2: Cardiovascular Disease Surge - The number of patients with cardiovascular diseases has increased by approximately one-third since July, with cases of acute heart attacks rising significantly [5]. - High temperatures can lead to blood thickening and increased risks of heart and brain attacks due to emotional fluctuations and blood pressure instability [6][8]. Group 3: Recommendations for Safety - Experts recommend maintaining hydration, managing emotional stress, and avoiding drastic temperature changes to mitigate health risks during high temperatures [9]. - For outdoor sports enthusiasts, it is advised to adjust exercise plans, avoid outdoor activities during peak heat hours, and stay hydrated with electrolyte drinks [10].

Core Viewpoint - The article highlights the ongoing high-temperature weather affecting various regions in China, with experts advising on health protection measures during this period [1][2]. Group 1: Weather Forecast and Impact - From July 14 to 22, regions including central and southern North China, Huanghuai, Jianghan, and central Shaanxi are expected to experience sustained high temperatures, with local maximum temperatures potentially reaching or exceeding historical records [1]. - Data indicates that since July, areas such as Huanghuai, Jianghuai, Jianghan, and Jiangnan have recorded high temperatures ranging from 37°C to 39°C, with some locations reaching 40°C to 41°C, and continuous high-temperature days lasting from 5 to 8 days [1]. - The main weather systems causing this heat wave are the stable subtropical high and continental high, leading to significant adiabatic warming and enhanced solar radiation, resulting in persistent high temperatures [1]. Group 2: Health Risks and Recommendations - High temperatures can disrupt the human body's temperature regulation system, potentially leading to heatstroke, especially in conditions of low wind speed and high humidity [2]. - When temperatures exceed 32°C with humidity over 70%, the body's perceived temperature can rise by 10°C, increasing the risk of heat-related illnesses [2]. - Public health recommendations include avoiding prolonged outdoor activities during high-temperature periods, implementing effective sun protection measures for outdoor workers, and ensuring adequate hydration [2].

Core Viewpoint - The article emphasizes the seriousness of heat stroke and heat illness, highlighting the high mortality rate associated with heat stroke and the importance of early recognition and treatment [1][2][4]. Group 1: Understanding Heat Stroke - Heat stroke is a severe form of heat illness that can lead to multi-organ failure within hours, and public awareness is critically low regarding its dangers [1][2]. - Key warning signs for self-assessment of heat stroke include feeling hot internally, dizziness, unsteady walking, and symptoms like nausea and shortness of breath [2][3]. - The diagnosis of heat stroke requires specific conditions: high temperature and humidity, along with at least one of the following: altered consciousness, body temperature above 40°C, failure of two or more organs, or coagulation disorders [2][3]. Group 2: Immediate Response and Treatment - Immediate self-care actions include stopping physical activity, leaving high-temperature environments, and initiating cooling measures [4]. - The severity of heat stroke damage is influenced by peak temperature and duration of exposure; rapid cooling is essential to prevent cellular damage [4][5]. - Effective cooling methods include applying ice packs to major arteries, full-body cooling in cold water, and ensuring the patient is transported to a medical facility promptly [5][6]. Group 3: Prevention Strategies - Preventive measures include avoiding prolonged vigorous exercise in high-temperature and high-humidity conditions, especially for vulnerable populations like the elderly and children [7][8]. - Individuals working in high-temperature environments, such as construction workers, should take extra precautions to prevent heat-related illnesses [7]. - Gradual exposure to heat through outdoor activities can enhance heat tolerance and reduce the risk of heat-related illnesses [8].

Group 1 - The core issue is the increase in heatstroke cases due to prolonged high temperatures, with experts warning about the severity and high mortality rate associated with heatstroke [1][4] - In Hefei, the emergency call volume for heat-related cases has risen nearly 20%, averaging around 1,500 calls per day [5][4] - The peak call times for emergency services are during midday to evening, with symptoms commonly including dizziness, nausea, vomiting, and even loss of consciousness [7][4] Group 2 - Elderly individuals are particularly vulnerable to heatstroke due to reduced bodily functions and poor temperature regulation, necessitating special attention [7][4] - Children also require extra caution as their metabolic rates are high, but their temperature regulation systems are not fully developed [7][4] - Immediate actions recommended include moving to a cool, ventilated area, loosening clothing, and hydrating, with a call to emergency services if symptoms do not improve [9][4]