（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。 3 u( p' l' s6 l' _- u( o3 {( e2 @4 ]7 ~* ?5 U$ X
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。 + h0 L" X$ K& O/ R, [- G 9 L3 B6 U4 w% ^ ]) B9 F3 m+ j% M 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。4 h7 Y% u: f$ G7 E) f# W1 X
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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。: w" @- v$ p( K1 M1 l8 C% }+ K
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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。 1 S* Y- W* x/ p1 P4 b. F7 B0 V2 c+ i, X s
「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。; |2 M- {2 C1 r+ M" v3 T, E
; |! t! I" ^; ] 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。' {% w4 l, S0 P6 N6 Q
r F3 E* j# p/ D6 B: e 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。 1 r0 l4 V" I$ T0 N* G/ u# K p6 a W . H& {! l$ ~2 a z& ?! w7 s
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7 ]+ B6 P) p. G9 G0 UAdulterers beware... it could raise your risk of heart attack 23rd March 2011 " E. C2 w; Q6 f& d9 G% I. j) l) o8 G/ ]0 z! q( _3 F8 V
Having a fling or one-night stand is already a risky business. But now there is another reason for adulterers to worry. ; h- h0 J2 D* I. k/ K. F , j+ z8 P2 d$ h# n$ @, q+ j7 @They are probably more at risk of having a heart attack.! c' K/ m0 _9 `
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Occasional sexual activity is much more likely to cause a heart attack than regular sex, researchers have found. 0 k( C# j# E; T" o' S8 Z0 U$ K. M3 j. v
The short-term risk of having a heart attack increases almost three-fold among those who rarely make love.% ~5 l& c( v! h. S" o
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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.# J/ Q& K8 F- X2 \4 f
, l* k3 E/ M6 tA 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.$ l1 r: ]6 M& U+ C U- J
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Overall, there is a 3.5 times higher risk of such activity triggering a heart attack. 7 _+ ]# ~+ [ a( d % R6 W& T6 n0 D' i2 c5 M* m6 @The risk after ‘episodic’ sexual activity – the kind associated with affairs and one-night stands – is 2.7 times higher. & R: E$ U2 s# K9 r X8 v & X6 T* P( J7 T! o1 T* x6 l* E! LBut 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. % X% T0 @6 U& r: }6 ?% Z- y# _0 i$ A: A7 d" r/ H$ b
The 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. ; }0 h; o0 P) C% i g9 m! q# `- S 9 R7 y, @+ a- N% c; kThe 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.1 Y% W! ] L0 i7 }
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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. 7 t, F( P) i2 O ~- f/ L1 O9 l" A$ F2 p8 {" S1 y
The higher risk during activity is then offset by a lower ‘everyday’ background risk for people who are fitter because they are more active. g! w9 Y1 e7 H; X/ G & ^* Q+ k9 j$ j9 D1 n5 F6 q( v) A& Z6 JAmy 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.3 o, ^: M9 M# o3 @( x
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'The study shows sex can act as a trigger, but this doesn’t change our viewpoint on the health benefits of physical activity. . z: G- I9 s( y 4 `5 A6 B5 G" w: c) w" {2 |/ \‘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. : K+ h0 X- v6 y% f/ ^* S: Y6 U" v2 S& b
'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.’
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