Traffic noise may increase the risk of myocardial infarction onset

Karolinska Institutet, Stockholm, Switzerland a few days ago a study found that living in quiet areas as compared to life in a road traffic noise near the people more susceptible to myocardial infarction. The study will be published in the March issue of "Epidemiology" magazine.

Research selected for 1571 in 1992 and 1994 patients suffering from myocardial infarction in Stockholm people as research subjects. Near residential areas in order to determine the traffic noise and myocardial infarction whether or not there exists a natural link between the researchers of their living environment and noise level of the evaluation. At the same time, air pollution, and other pathogenic factors have been considered in the design of questionnaires and interviews with them.

The researchers found that data from an overall point of view, between noise exposure and myocardial infarction and no specific relevance. However, when the hearing-impaired, as well as other noise sources come into contact with the crowd after the removal, the researchers found that long-term exposure to traffic noise over 50 db of people suffering from heart attack risk than living in the quiet environment of higher 40%. The conclusions apply to, such as air pollution and other risk factors exist.

Responsible for the research, Professor Göran Pacirn said: "The Stockholm local council has taken into account the results of the application of new roads and residential areas of planning, we will study the next step on road traffic noise and myocardial infarction between relevance in a more reasonable explanation, but first and foremost based on the impact of noise on the cardiovascular system awareness, such as noise and the relationship between high blood pressure. "

Noise has become an increasingly serious environmental problems. According to WHO statistics, Europe has almost 40%% of the population are exposed to daylight in more than 55 decibels of which road traffic noise. In traffic noise, Europe has not any restrictive clauses, while in Switzerland, the streets may be acceptable to the largest 55 decibels of noise.

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