在极端高温天气中，缺乏空调的人群面临显著健康风险，但通过正确的防护措施可以有效应对。当温度达到华氏96度（摄氏36度）且湿度为45%时，这已属于"危险"级别，会影响长期暴露或从事剧烈活动的人群[1]。更为严峻的是，当夜间温度不低于华氏75度（摄氏24度）时，热病和热中风等严重后果的发生风险会显著增加[1]。
专家建议采取多项措施来保护自身健康。创建一个"冷角"睡眠空间是重要策略之一，这样可以确保身体在晚间得到充分恢复，为第二天做好准备[1]。此外，充分利用公共冷却空间也是有效办法。了解热病症状的早期表现至关重要——大量出汗、肌肉抽筋和头痛都是早期警信号；而热中风的症状则包括意识混乱、言语不清和昏迷，这些需要立即寻求医疗帮助[1]。在职场层面，华盛顿、俄勒冈、加州、内华达、科罗拉多、明尼苏达和马里兰州已制定了工作场所热保护规定[1]，为高温环境下的劳动者提供法律保障。
Extreme heat poses serious health risks, particularly when temperatures reach dangerous levels combined with high humidity. According to health experts, conditions become "dangerous" when temperatures hit 96 degrees Fahrenheit (36 degrees Celsius) with humidity at 45 percent or higher, especially for those exposed to prolonged heat or engaging in strenuous activity [1]. The situation intensifies at night: when temperatures fail to drop below 75 degrees Fahrenheit (24 degrees Celsius), cases of heat exhaustion and heat stroke increase significantly [1].
Certain populations face elevated vulnerability during extreme heat events. Children, older adults, and individuals with specific health conditions require particular attention and protective measures [1]. To mitigate risks, experts recommend establishing a "cool corner" for sleeping to allow the body to recover and prepare for the following day [1]. Additionally, utilizing public cooling centers and spaces offers an accessible way for those without air conditioning to find relief [1]. Understanding the warning signs of heat-related illness is critical: early heat exhaustion symptoms include excessive sweating, muscle cramps, and headaches, while heat stroke presents more severe indicators such as confusion, slurred speech, and loss of consciousness [1].
Regulatory protections exist in several U.S. states to safeguard workers during dangerous heat. Washington, Oregon, California, Nevada, Colorado, Minnesota, and Maryland have implemented workplace heat protection regulations [1], ensuring that employees receive necessary safeguards and accommodations when working in extreme temperatures.