[社会新闻] 偷情风险大

（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。
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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。$ I) I) M/ }' ?! P) }. w2 g
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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。

　　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。7 A& r* s: k* I0 b: y" e5 ~. q0 \
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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。; p* Y; [+ l1 R0 L, n; A1 b
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　　「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。3 ]* ^$ S& i0 U9 n' M4 q" y

　　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。人在德国社区# y$ r# \: A" E8 R
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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。0 |0 V, H0 S5 r: V1 q
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职场偷情
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Adulterers beware... it could raise your risk of heart attack  23rd March 2011

Having a fling or one-night stand is already a risky business. But now there is another reason for adulterers to worry.' `1 ~# M0 P/ E. F+ _

They are probably more at risk of having a heart attack.$ I) {' U# z) c8 x! N8 p# I# N7 \

Occasional sexual activity is much more likely to cause a heart attack than regular sex, researchers have found.

The short-term risk of having a heart attack increases almost three-fold among those who rarely make love.0 I# \1 g* K$ M7 j# a+ }. m
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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.
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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.

Overall, there is a 3.5 times higher risk of such activity triggering a heart attack.
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The risk after ‘episodic’ sexual activity – the kind associated with affairs and one-night stands – is 2.7 times higher." f$ H4 N/ \6 u7 ?. p; b
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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.4 o  }/ e: R+ w% U

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.
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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.
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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.

The higher risk during activity is then offset by a lower ‘everyday’ background risk for people who are fitter because they are more active.
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Amy 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.* d5 M* |) m4 F; d/ C( T. `9 M

'The study shows sex can act as a trigger, but this doesn’t change our viewpoint on the health benefits of physical activity.: k$ x% ~, u: I- }) 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.6 x2 u" _; g( e/ X
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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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