(中央社台北23日电)纵慾寻欢或搞一夜情原本就有危险,如今想偷吃的人又多了个担心的原因,就是心脏病发作的风险可能比较大。. v% e; V3 S7 O" _* n k& ?; t2 f3 y
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英国「每日邮报」(Daily Mail)报导,研究人员发现,偶发性行为比规律性行为容易导致心脏病发作。! h' R* I% ^5 F! I( R3 z
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报导指出,对不常做爱的人而言,因此心脏病发作的短期风险恐怕增加近乎3倍。较常有性行为的人则可减低引发心脏病的危险,这代表幸福的夫妻可能比较占优势。 1 n5 M% t. Y6 X3 U5 i% N [% s; _' T- @; Z
研究人员审查14篇关于心脏病发的研究后发现,若从事任何形式的「偶发」体能活动,也就是个人很少做的事情时,心脏会处于受压力的状态。 / u1 r$ @6 @* l8 N0 o6 A! z3 L/ O# r- U+ i: q) P
报导說,一般而言,从事这种活动时引发心脏病的风险,为一般活动的3.5倍。而在进行「偶发的」性行为,像是外遇偷吃或搞一夜情后,风险则达2.7倍。+ | V J4 G0 ^' G) N
4 k" b) P5 n4 c: ^2 ?5 e; h 「美国医学会期刊」(Journal of the AmericanMedical Association)刊出的评论报告說,不论是在性行为或体能活动方面越活跃的人,心脏病发的风险就越低。 ; I+ @% U, ~6 S $ K1 p! n( Z7 z- m3 Z' t; W 美国塔弗兹大学医学中心(Tufts Medical Center)及哈佛大学公共卫生学院(Harvard School ofPublic Health)的研究人员强调,实际因性爱引起心脏病发的人数并不多。. V% m9 _$ z# g
* f- S! v. I$ Z8 T2 z* C# L 报导說,性爱就像任何的体能活动,会增加心跳速率及血压,代表心脏必须更卖力运作。因此,性爱引发心脏毛病的风险,与相同强度体能活动引发心脏病的风险是一样的。& {+ w& _" m* u) N( `9 }+ V- y
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Adulterers beware... it could raise your risk of heart attack 23rd March 2011 ' g% u# K" a+ i' w# K( l$ A) ] % ^" B/ @4 a5 iHaving a fling or one-night stand is already a risky business. But now there is another reason for adulterers to worry.' ^6 [3 f5 `% Q8 t3 v: A: b; r9 I2 j
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They are probably more at risk of having a heart attack. # y1 F( T" Q& C' m( L6 l6 x8 F; ~! D& p0 X" `
Occasional sexual activity is much more likely to cause a heart attack than regular sex, researchers have found.% C0 L# f' h; X" J, K
' U; I1 t0 z5 G3 L" i) `The short-term risk of having a heart attack increases almost three-fold among those who rarely make love.5 e7 U$ W7 Q p2 @- l/ ~
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Those who have sex more often reduce the risk of it causing a heart attack – which means happily married couples could have the advantage.6 b9 {- G! V( D7 @# {% t l" Z
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A review of 14 studies of heart attacks found the heart is under strain during any form of ‘episodic’ physical activity – something an individual only does rarely." |4 F0 D$ S0 X3 c0 i; P' {
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Overall, there is a 3.5 times higher risk of such activity triggering a heart attack. " k: [) A& N C& w K 7 e0 ^) L: t& L D5 E7 ?The risk after ‘episodic’ sexual activity – the kind associated with affairs and one-night stands – is 2.7 times higher. 9 L$ h# u" B7 P1 l9 w , b! y$ J" \' L" b5 P- cBut the more active an individual is, either sexually or physically, the lower the risk falls, said the review in the Journal of the American Medical Association.. ~) ~) ?' i6 c L6 Z( `
+ h: W$ }6 y# p/ o6 `: C0 AThe relative risk of heart attack caused by a burst of activity falls by around 45 per cent for each additional time a person indulges in it a week. The risk of sudden cardiac death also falls by 30 per cent. $ z0 W$ c2 c1 N! L- U. k! b% q$ ~. t/ n5 b9 p, p6 A! J
The researchers, from the Tufts Medical Centre and Harvard School of Public Health, stress that the number of heart attacks actually caused by sex will be low." Z8 j v% a- Q+ Z! [
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Like any physical activity, sex can increase the heart rate and blood pressure, which means the heart has to work harder. As a result, sex carries the same risk of triggering heart trouble as equally energetic forms of physical activity.4 Z8 @# [8 j* h( Q# Z* o2 d5 c
3 N4 ]9 s1 g9 ~: [! R) bThe higher risk during activity is then offset by a lower ‘everyday’ background risk for people who are fitter because they are more active. ' s, ?% I$ S& X9 C8 U $ @( O2 |1 d8 o* uAmy Thompson, senior cardiac nurse at the British Heart Foundation, said: ‘It’s important to distinguish between what causes a heart attack, and what potentially triggers it./ T9 w2 ` }% S+ l
. F0 `9 P5 p+ B" R d% E4 c'The study shows sex can act as a trigger, but this doesn’t change our viewpoint on the health benefits of physical activity.; { F# {4 b, O( S0 }- f& R
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‘To help keep your heart healthy you should aim to do 30 minutes of moderate-intensity activity, such as a brisk walk or gardening, at least five times a week. ' g! d# _' C- {$ |# S& \9 p' m6 J _; Y
'Sex places no more stress on the heart than climbing a couple of flights of stairs, so people with or without heart disease need not avoid it.’