Group 1 - Heat stroke is the most dangerous type of heat illness, with a mortality rate ranging from 30% to 70% [1] - High humidity weather is more likely to cause heat stroke compared to dry heat, especially when average temperatures exceed 33°C [1] - Symptoms of heat stroke include dizziness, fatigue, and body temperature exceeding 38°C [1] Group 2 - Proper management of temperature transitions is crucial to prevent heat-related illnesses, such as avoiding sudden shifts from hot outdoor conditions to cold air-conditioned environments [3] - It is recommended to maintain an indoor-outdoor temperature difference of no more than 7°C, with 26°C being an ideal indoor temperature [5] - Key steps for emergency treatment of heat stroke include moving to a cooler environment, rapid cooling, and replenishing electrolytes [5] Group 3 - Common misconceptions about heat stroke treatment include the belief that pinching the person can revive them, which is ineffective and delays proper care [7] - Drinking ice water or taking cold showers can be harmful as it may cause blood vessels to constrict, leading to increased blood pressure [10] - Simply drinking plain water is insufficient for rehydration after heat stroke, as it does not replace lost electrolytes [12] - Using antipyretics to reduce fever is ineffective for heat stroke, as it masks symptoms and delays necessary treatment [15]

Core Points - Japan is experiencing extreme heat with over 100 observation points recording temperatures above 35°C and humidity levels exceeding 65%, increasing the risk of heatstroke [1] - The Japan Meteorological Agency and the Ministry of the Environment have issued continuous "heatstroke warnings" urging the public to avoid outdoor activities during high temperatures [1] Recommendations for Residents and Tourists - It is advised to plan outings carefully, monitor weather forecasts, and avoid going out during high temperatures unless necessary. Staying indoors with air conditioning is recommended, while ensuring the temperature is not set too low to prevent health issues [1] - For those who must go outside, it is important to take precautions against heat, such as avoiding exposure during peak hours, staying hydrated, wearing loose and breathable clothing, and carrying common heat-relief items [1] - In case of mild heatstroke symptoms like dizziness or nausea, individuals should move to a cooler environment and take cooling measures, with severe cases requiring immediate medical attention [1]

Group 1 - The article highlights the extreme heat wave in Shanghai, with temperatures expected to reach between 39℃ and 40℃ in early July [1] - The emergency department at Fudan University affiliated Jinshan Hospital has treated four cases of heatstroke since June 28, including elderly individuals and outdoor workers [1] - A 92-year-old man and a 60-year-old outdoor worker are cited as typical cases of heatstroke, emphasizing the vulnerability of these demographics during high temperatures [1] Group 2 - Medical professionals recommend that citizens take precautions against heatstroke, such as staying hydrated and seeking medical attention if symptoms persist [1] - Three effective methods to alleviate heat stress are suggested: moving to an air-conditioned room, wearing breathable clothing, and applying ice packs to key areas of the body [2] - The use of frozen mineral water as an ice pack on areas with rich blood vessel distribution is highlighted as a quick way to lower body temperature [2]

Core Points - The article discusses the rising temperatures across the country and the importance of preventing heat-related illnesses, particularly focusing on vulnerable populations [1][3]. Group 1: Heat-Related Illnesses - "Heat-related diseases" are defined as conditions triggered by high temperatures, high humidity, and poor air circulation, with symptoms progressing from heat rash to potentially fatal heat stroke [1]. - Early prevention and symptom recognition are crucial to prevent the worsening of conditions [1]. Group 2: Vulnerable Populations - Three key groups at risk for heat-related illnesses include outdoor workers (e.g., construction and sanitation workers), sensitive populations (e.g., pregnant women, the elderly, and children), and individuals with chronic underlying health conditions [1][3]. - Children are particularly susceptible due to their faster metabolism, immature sweat glands, and developing temperature regulation systems [5]. Group 3: Prevention Strategies - Outdoor workers should monitor weather forecasts, avoid working during peak heat hours, and regularly hydrate, emphasizing the importance of drinking water before feeling thirsty [3]. - For children showing symptoms of heat-related illness, immediate action should include moving them to a cool area and using wet towels for physical cooling [5]. - Elderly individuals are advised to use air conditioning to ensure proper air circulation, with recommendations to maintain a temperature around 26°C [5].