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5 q2 ^, K& W A) `Adulterers beware... it could raise your risk of heart attack 23rd March 2011; T( g' l+ _1 q3 h4 x9 _" g
- H9 _6 S2 h, ^6 b( kHaving a fling or one-night stand is already a risky business. But now there is another reason for adulterers to worry. I+ P& h- b; W: |; j* _4 e5 j5 b3 E3 i- C8 }7 M# T
They are probably more at risk of having a heart attack. ( s, k2 n# x# w- i3 ~: { K ! Q- i9 |# L' P) n% j5 h VOccasional sexual activity is much more likely to cause a heart attack than regular sex, researchers have found.3 y1 p5 `& }8 D/ r0 K
" |5 u; @% j( a- H7 MThe short-term risk of having a heart attack increases almost three-fold among those who rarely make love. 1 r' w- J8 H# x' W8 @6 x " k/ ~, } {5 E# RThose who have sex more often reduce the risk of it causing a heart attack – which means happily married couples could have the advantage. 3 ]2 U1 U0 x9 [5 H9 u6 f: {8 Z5 Q + i4 l' y1 ^( o1 P+ u! L; iA 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" y% e$ Q6 j% G
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Overall, there is a 3.5 times higher risk of such activity triggering a heart attack. 5 x0 ^4 `- _# d' V X( f # c4 L" o7 \6 u0 L9 IThe risk after ‘episodic’ sexual activity – the kind associated with affairs and one-night stands – is 2.7 times higher.% R# v) x1 C: n3 R$ h
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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 Z6 h1 V9 D& Q0 h/ ~ Q0 X% B5 Y+ u/ V+ o0 l" c
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. ( L) m( x1 u( S, h+ J& T5 C( ]6 a: f" I
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.' U4 g' z2 x# c& s
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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.- X U/ C( Z& R6 _! A
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The higher risk during activity is then offset by a lower ‘everyday’ background risk for people who are fitter because they are more active. $ e3 @' N+ O% U5 | }' C a) ^% V" X- u% l
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.: D; I! O7 A: ^' X
1 R5 d, a3 ?. }* A$ Q9 I/ i'The study shows sex can act as a trigger, but this doesn’t change our viewpoint on the health benefits of physical activity. 1 K" X9 I1 D+ q, R* U, N9 q% O# w3 V# e
‘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.0 J- U+ ^8 Q" U9 Y+ d) F( y
6 @0 ^8 f, v3 e7 N- V7 ] [6 Q'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.’