（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。& D) Q0 x, M- `% ~
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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。1 g, }, @; j( X( b
5 ?& W" L7 n, E 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 c! s) n! Y! w
) h% |4 f5 {* t, N. Y 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。 ; y" ?( g8 F. v9 q: h5 @. d4 L 9 t+ N! F- \8 A0 X3 H 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。3 S- v- E' D L' V4 _
9 i2 n! b: P2 k, I8 ~2 u 「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 V8 x% l; v0 n ~ # f& {: i0 {' J/ ~" a# N. g 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。 8 b5 k& I( @2 j% E4 s4 {7 } + T- h8 p% p6 \5 V7 `# x* 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。% e6 [& G' |" `* J0 a
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Adulterers beware... it could raise your risk of heart attack 23rd March 2011& q6 q$ u8 n) w0 V' {" x, U; i N3 e
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Having a fling or one-night stand is already a risky business. But now there is another reason for adulterers to worry.4 u' ?' {! X4 i- r; E2 ^: s O" z* q" b
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They are probably more at risk of having a heart attack.( |8 r3 ^" ?0 _" A7 Y
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Occasional sexual activity is much more likely to cause a heart attack than regular sex, researchers have found., b, o) p! s% U& R( |. w! T- ^
! |$ ^ R& P1 T5 G! N1 EThe short-term risk of having a heart attack increases almost three-fold among those who rarely make love. " f9 p9 y# d: z, q; ^( L$ q, z+ e) \, i1 K* E
Those who have sex more often reduce the risk of it causing a heart attack – which means happily married couples could have the advantage. . {) f$ I$ {% f/ T' @$ T( }( Q2 w# z* I7 _6 B
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. O% \/ G$ E2 g6 B" Z$ H O# E. _# F) UOverall, there is a 3.5 times higher risk of such activity triggering a heart attack.5 H% \5 `/ F6 G1 J
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The risk after ‘episodic’ sexual activity – the kind associated with affairs and one-night stands – is 2.7 times higher.) R, Y8 e' P& k! w0 R1 }/ D% @
. m A; A' |: _6 v1 P& R, o2 B* r5 qBut 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.& h. \8 c+ p6 p$ G. r2 L
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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.$ D# l1 i: ~( ]
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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.8 O; q# g# [$ X+ K1 }. N
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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. . f0 a' U/ o! U; M4 e" P8 C4 ?, X j2 e4 l6 Z2 V3 t" a
The higher risk during activity is then offset by a lower ‘everyday’ background risk for people who are fitter because they are more active.2 Y' w# D7 E/ m$ z5 O) ?
( ^. Y( [8 C: o. c% M' nAmy 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.* `2 J) N/ k: r
& `& D$ |- s' Q0 \'The study shows sex can act as a trigger, but this doesn’t change our viewpoint on the health benefits of physical activity.: r! Q; x. o. Q) v. |
, y6 y% ^* ^1 i8 {0 w6 n' _‘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.( Z; w$ l4 ? ^4 e( C9 y: v8 d
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'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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