) ]; h! ]: B6 A( g7 y; I这一研究还列出了这些诱因的风险比率。& O y$ G+ Q2 ]* h3 e9 M5 B D
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其中,可卡因使心脏病发作风险增加2300%,暴饮暴食增加700%,性活动为300%。4 {% @* y, w6 O F& |" ?, B
6 I4 x% \6 ^ Q* u& P+ i* G; z* O' L" F# I尽管如此,由于使用可卡因的人为少数,所以1%的人是因为可卡因诱发心脏病,而咖啡由于饮用普遍,因这一饮料诱发心脏病的人却占了5%。( }) X7 C: Q7 z: j% V
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超过2%的人在性交中或者过后诱发了心脏病。3 H* m& c. X: G( b2 M
* o) h. n! H# B0 P! \0 S研究:性活动是心脏病最大诱因之一8 w3 G+ N7 p$ u" b6 t
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Coffee, Sex, Smog Can All Trigger Heart Attack, Study Finds * J" `' |$ l1 D! K( K$ qEven a small rise in risk can end up causing many deaths when spread across the population & @) H4 Y) c/ l0 R
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WEDNESDAY, Feb. 23 (HealthDay News) -- A major analysis of data on potential triggers for heart attacks finds that many of the substances and activities Americans indulge in every day -- coffee, alcohol, sex, even breathing -- can all help spur an attack.& ^* W$ G, d) Q) t
& D: ]5 a, V) J" z7 m$ wBecause so many people are exposed to dirty air, air pollution while stuck in traffic topped the list of potential heart attack triggers, with the researchers pegging 7.4 percent of heart attacks to roadway smog. . {2 R; l. o7 a! V* }! @& K* R $ f% }5 J) e) @7 GBut coffee was also linked to 5 percent of attacks, booze to another 5 percent, and pot smoking to just under 1 percent, the European researchers found. H) [+ l8 {2 |/ j+ F8 M; z
9 X) i1 Y8 P. ]- J3 v" R: j3 ]% H' EAmong everyday activities, exerting yourself physically was linked to 6.2 percent of heart attacks, indulging in a heavy meal was estimated to trigger 2.7 percent, and sex was linked to 2.2 percent. ' N$ H6 D) [$ F$ c0 J* C 4 u, Q" U* J! k2 ^1 z9 aThe researchers stressed that the risk for heart attack from any one of these factors to a particular person at any given time is extremely small. But spread out over the population, they can add up.1 M5 |' \8 Q. ?8 Q7 }/ u
% m3 E# U; W! r' [For example, air pollution is a minor trigger for heart attacks, but since so many people are exposed to smog, it triggers many more heart attacks than other more potent triggers, such as alcohol and cocaine.* e# Z4 q0 Q- B. Q" b/ B
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"Small risks can be highly relevant if they are widely distributed in the population," explained lead researcher Tim S. Nawrot, assistant professor of epidemiology at the Hasselt Centre for Environmental Sciences at Hasselt University in Diepenbeek, Belgium. , w$ M1 ~, `8 {* R: m& _ 1 s- }8 I# e5 [7 o: bCommenting on the study, Dr. Gregg Fonarow, spokesman for the American Heart Association and professor of cardiology at the University of California, Los Angeles, added that "based on these findings, improvement in air quality and reduction in traffic may not just help the environment and increase quality of life, but also substantially decrease the incidence of [heart attack]."7 j. ?/ o+ ~# X/ u' Q- L
3 _) m4 l5 w) t4 p6 N" JThe report is published in the Feb. 24 online edition of The Lancet.