Recently, Guangdong has been a little cooler, but temperatures above 30℃ have residents clinging tightly to their air conditioners, which must be used properly.
A recent incident at the Sixth Affiliated Hospital of Sun Yat-sen University came from a call for an approximately 78-year-old woman who had fainted after spending a long time in a small, enclosed room dealing with old cardboard boxes and other wastes. She was reluctant to turn on the air conditioning and did not ensure proper ventilation. Thankfully, her family promptly called emergency services, and she has since been stabilized.
Why Can You Suffer Heatstroke Indoors?
In hot and humid southern regions, many people choose to stay indoors during the hottest days of summer to avoid direct sunlight. Dr. Wu Guichang, Deputy Chief Physician of the Emergency Department at this hospital, along with resident physician Cao Yawen, warns that heatstroke can still occur inside air-conditioned environments. When indoor temperatures reach above 32℃ and humidity exceeds 60% with poor air circulation, the risk of heatstroke increases, particularly among vulnerable groups such as the elderly, infants, and pregnant women.
Risks of Prolonged Air Conditioning Use
Dr. Wu said that staying too long in air-conditioned rooms can lead to "cold heatstroke". In such settings, sweat gland secretion decreases, impairing the body's ability to cool down. Prolonged exposure to controlled temperatures can weaken the body's adaptability to environmental changes and reduce vascular regulation, heightening the risk of heat-related illnesses. Furthermore, drastic temperature differences between air-conditioned areas and the outdoors can lead to rapid shifts in body temperature, which may result in cold heatstroke or colds.
Precautions Against Heatstroke in Hot Weather
Stay Hydrated: Ensure ample water intake, and replenish salts and minerals, especially for the elderly whose bodies contain less water and are more prone to dehydration.
Maintain a Light Diet: Focus on light meals rich in protein, vitamins, and calcium, and ensure adequate sleep.
Outdoor Protection: When outdoors, protect against sun exposure; opt for lightweight, loose-fitting, and light-colored clothing, and limit outdoor labor during peak heat.
Indoor Ventilation: When temperatures reach 35℃ or higher, remain indoors and keep spaces well-ventilated; avoid being outside during midday or prolonged periods.
Special Care for Vulnerable Populations: Elderly individuals and pregnant women should not stay in poorly ventilated areas for extended periods.
As summer continues, it is vital for residents to be aware of the risks associated with both outdoor and indoor heat exposure to prevent health emergencies.
Reporter | Hannah
Editor | Nan, Nina, James
