It's a fact - noise can give you a heart attack!

Nov 24 2005

A new study suggests that people who work in noisy offices or live near busy roads, railways or airports may run a higher risk of heart attacks.

In a study of more than 4,000 men and women it was found that there were links between long-term exposure to higher decibel sounds and susceptibility to a heart attack.

Apparently the risk appears to be linked more to the physiological effect of environmental and work noise, rather than the annoyance and stress that it causes.

According to the study, both males and females are vulnerable but are affected in very different ways.

It seems that general environmental noise, such as that caused by traffic, made women three times more likely to have a heart attack, but increased the risk for men by less than 50 per cent.

In contrast, workplace noise increased the risk for men by nearly a third, but did not seem to have an impact on women.

The heart attack risk rose with increasing noise levels until reaching a threshold point, above which it remained constant, and this appeared to be about 60 decibels, which is the level of noise typically experienced in a large, busy office.

Stefan Willich, the study leader and director of the Institute for Social Medicine, Epidemiology and Health Economics at the Charite University Medical Centre, Berlin, says the findings show that the European safety level for workplace noise, the requirement for ear protection is 85 decibels, was set too high.

He says that the limit should be brought down to between 65 and 75 decibels.

The study is published in the online edition of the European Heart Journal.