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国内外近年来的最新研究发现，环境温度与人类心血管疾病发病和死亡的关系密不可分。欧美流行病学研究开展较早，提示极寒和极热的天气均能增加急性心肌梗死的发病率和病死率。亚洲地区（包括中国）的研究印证了欧美结论。高龄、女性及西班牙人种发病的可能性更大。极端外界温度可改变交感神经的兴奋性，促进激素分泌，改变血液中成分的浓度，从而导致粥样斑块破裂、脱落致使心肌梗死出现。“,”The recent study reveals a strong relationship between ambient temperature and cardiovascular disease.Epidemiological studies carried out earlier in Europe and America suggested arctic and extremely hot weather can increase morbidity and mortality in patients with acute myocardial infarction .Research from Asia (including China) confirms the conclusions in Europe and America.Senior citizens, women and Hispanics are more vulnerable.Extreme ambient temperature can stimulate the excitatory of sympathetic nerve system , promote the secretion of hormones,change the concentration of the blood component,thus lead to plaque rup-ture and shedding, resulting in myocardial infarction.