+ l! ~+ N5 t; }' [! A- G 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 R# D. L" A, ?7 c
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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。: O1 x7 M- N* F! x2 i* M+ J
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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。 h' P' {' ^$ ?% Z4 P, o
8 v2 |" d9 ^/ m/ x7 `: r 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# ~6 R) f& L: r! M1 A , a% {" r: h& w; ]) }0 E 「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。: z8 L r, H S' m; m
. \; \9 d7 L* Z) K$ G/ A 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。/ Q% } Q+ J2 h: W ~' {
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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。 . d! m b% m0 E0 a % X- ^8 X5 l6 @- `0 q
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2 z- T, Q* a0 d0 _ 7 E4 B+ t" [/ }8 V( b$ uAdulterers beware... it could raise your risk of heart attack 23rd March 2011$ p; }2 s. t' r
3 n0 p: `; p) p2 q! O QHaving a fling or one-night stand is already a risky business. But now there is another reason for adulterers to worry.# y: x% y$ ]# Y5 e' t; V+ e
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They are probably more at risk of having a heart attack.. F; Y/ E/ M2 e
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Occasional sexual activity is much more likely to cause a heart attack than regular sex, researchers have found. 3 k9 E& `6 q2 k) A % I" i$ F: Z5 S+ Z: k) S# _The short-term risk of having a heart attack increases almost three-fold among those who rarely make love. 3 t- a$ L: K: U+ y: u' @& Y/ X. }1 Q+ y6 a9 x
Those who have sex more often reduce the risk of it causing a heart attack – which means happily married couples could have the advantage. 4 b: s! ]) E6 S, k" S / A H1 X. c i6 P* y# N; AA 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. 5 @5 I0 L" g2 t) V1 N% T & v& A" | V; k: X0 e) ROverall, there is a 3.5 times higher risk of such activity triggering a heart attack. : o1 k5 d* S' a2 U5 x' }$ T1 |8 _/ N8 x* w
The risk after ‘episodic’ sexual activity – the kind associated with affairs and one-night stands – is 2.7 times higher. 7 H" u3 F: k+ }- H+ L % c# n& x: e& Z6 ^But 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.& I1 B% o9 A& B$ d7 p
; Y# J6 O1 l* [, i9 ~. T* U' h3 YThe 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. . |- p4 X% J9 K( r4 O0 k% D P / X/ T( |- p2 R: O- B9 fThe 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. & W1 E2 ?: e7 j) i3 @* o $ j0 Q. W! O. xLike 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.6 g/ E+ K: `" P" J
' O7 V7 }1 w( yThe higher risk during activity is then offset by a lower ‘everyday’ background risk for people who are fitter because they are more active. 0 e( c2 k$ [7 P6 r4 e0 ^ : g( k1 n$ @) x, |1 T. WAmy 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.4 \* j& [( K; n l% o
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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. ) m- z; m1 Q0 M+ P5 G( N' N! u+ H L3 O4 i" z2 l9 `( _
‘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.5 T6 `2 g* j( B8 T
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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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