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对易感人群来说,酷热和严寒的气温可能是致命的.例如有证据表明,在2006年7月加利福尼亚州2周高温中有160名以上的死于酷热,通常是老年低收入者易受影响,但还不大清楚极端气温是如何与医疗条件一起增加风险的.最近哈佛大学公共卫生学院分析美国50个城市几百万人的死亡记录以确定是哪些因素在起作用,这是首次如此规模考察极端气温下哪些疾病导致死亡率增加.
The hot and cold temperatures can be fatal to susceptible populations, for example there is evidence that more than 160 of the 2 weeks of high temperatures in California in July 2006 died of heat, most of whom were low-income elderly But it is not yet clear how extreme temperatures can add to the risks associated with medical conditions.Recently Harvard School of Public Health has recently analyzed the death records of millions of people in 50 U.S. cities to determine what is at work for the first time Scale examines which diseases lead to increased mortality in extreme temperatures.