（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。+ S- j1 O! j6 u- K$ p- Y5 F% L9 B
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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。6 E" ^1 ?1 ?; l/ i3 J% z
/ l" I5 @. q4 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。 + D% e* E0 M! |! k1 A+ [& S1 u3 d" x/ z8 e2 y8 R' v
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。& s1 G# V1 T/ ?0 S
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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。 ! s$ [6 D; X! H4 V Q0 F4 z+ s8 u9 G& M# K9 u3 n5 \) P
「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。7 m0 L+ Z! h# a- O
$ r3 w3 l) [' C. ?8 V6 u 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。 9 K; U- Y9 v" Z( J3 n Z ' C, b" J' L; t: `7 o9 a 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。' ~6 v. V# ~$ V
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! m, p+ b! c2 @6 P1 t5 O* s0 U- zAdulterers beware... it could raise your risk of heart attack 23rd March 2011: N! F. o" V5 F. \8 O
1 l# A1 z$ v! B; L* o- A* AHaving a fling or one-night stand is already a risky business. But now there is another reason for adulterers to worry. , A$ L( w# F/ ^2 C, |+ U / c }& ^/ S# ^+ f6 k$ tThey are probably more at risk of having a heart attack. 6 T0 Z# T+ q, s 6 U) z8 a! w4 l9 E- cOccasional sexual activity is much more likely to cause a heart attack than regular sex, researchers have found. / E! A3 g8 Z( |, I4 W1 ?) w : W+ o4 |. y4 s' {) u* LThe short-term risk of having a heart attack increases almost three-fold among those who rarely make love.: j5 X; e* H& U4 r
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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.- w4 s/ Z# m4 Z$ k( z+ l$ s7 }2 L
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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. 0 v9 |1 U$ S7 } X0 v5 g3 E5 G' G1 p+ b& \; M! U5 ?2 f
Overall, there is a 3.5 times higher risk of such activity triggering a heart attack.0 J1 O- z" P H1 C" k. e/ c' f
, U' {$ B6 e2 k; u, V0 [, z$ lThe risk after ‘episodic’ sexual activity – the kind associated with affairs and one-night stands – is 2.7 times higher.! P! H/ }+ H( @6 d! f- H+ k' p
& R3 Z! l7 {( Z+ iBut 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., }7 O Q5 P* s7 l) ^
E' e4 N* D+ O. B4 {* kThe 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. + H& X2 s: W) F' |0 \; i; J/ I& q% o" n) W f, B
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. 9 c, l) v7 f4 D, k9 l. u / K% o) B. I6 ILike 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. 2 i. p' j) \2 `& ]: B 6 q) ] z! @7 @+ l1 ^* r7 \$ FThe higher risk during activity is then offset by a lower ‘everyday’ background risk for people who are fitter because they are more active.- [/ S( ]" e( [) B
/ l8 C6 s6 x- T$ \! G. f# 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. ' a4 U4 J9 L8 b' Q( R1 S# \8 F. R$ A, D% ]- ]% r
'The study shows sex can act as a trigger, but this doesn’t change our viewpoint on the health benefits of physical activity. 9 h% p1 i* p. Y9 J- S# x, l9 c% F: \! r, ?4 m
‘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. / `1 z5 d* Z4 @) x5 _3 |6 i y8 O7 ]2 }6 U# L. _ _* i8 X
'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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