A meta-analysis of epidemiological studies suggests that short-term or long-term exposure to some air pollutants may increase the risk of hypertension. Another large, prospective cohort study in women with more than 20 years of follow-up indicate a consistent link between migraine and cardiovascular disease events, including cardiovascular mortality. Short-term exposure to SO2, PM2.5 and PM10 were significantly associated with hypertension. Long-term exposure to NO2 and PM10 had significant associations with hypertension. Exposure to other ambient air pollutants (short-term exposure to NO2, O3, and CO and long-term exposure to NOx, PM2.5, and SO2) also had positive relationships with hypertension. Compared with women without migraine, migraine was associated with an increased risk for major cardiovascular disease, myocardial infarction, stroke, and angina/coronary revascularization procedures. Furthermore, migraine was associated with a significantly increased risk for cardiovascular disease mortality. The increased risk is small at the individual level but still important at a population level. Source: http://hyper.ahajournals.org/; http://www.bmj.com/
一项对流行病学研究的荟萃分析表明，短期或长期接触某些空气污染物可能会增加高血压的风险。另一项大型，前瞻性对妇女超过20年的随访研究表明偏头痛与心血管事件，包括心血管死亡率之间存在一致的联系。短期暴露于二氧化硫，PM2.5和PM10与高血压显著相关。长期暴露于二氧化氮和PM10与高血压亦显著相关。接触其他大气污染物（短期暴露于二氧化氮，臭氧，一氧化碳和长期暴露于氮氧化物，PM2.5和二氧化硫）也与高血压正相关。与无偏头痛妇女相比，偏头痛与主要心血管病，心肌梗塞，中风，心绞痛/冠脉血管重建术的风险增加相关。且偏头痛与心血管病死亡率增加的风险显著相关。增加的风险在个人层面上虽较小，但在群体水平上仍具重要性。来源：http://hyper.ahajournals.org/; http://www.bmj.com/