Living near loud traffic may damage your health: study

Wed Sep 16, 2009 9:12am EDT
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NEW YORK (Reuters Life!) - Sitting in traffic can get your blood boiling temporarily but living near it might raise your risk of high blood pressure long-term, according to a Swedish study.

Researchers from Lund University Hospital found that among 24,238 Swedish adults aged between 18 and 80, those living near noisier roads were more likely to report having high blood pressure than those living in more peaceful surroundings.

"Road traffic is the most important source of community noise," said research Theo Bodin in a statement.

"We found that exposure above 60 decibels was associated with high blood pressure among the relatively young and middle-aged, an important risk factor for cardiovascular diseases such as heart attack and stroke."

Middle-aged adults with the highest traffic-noise exposure -- averaging more than 64 decibels which is just louder than an ordinary conversation -- were almost twice as likely to report high blood pressure compared to other people.

Of the adults aged 40 to 59, 28 percent of those with the highest traffic noise exposure said they had high blood pressure compared to 17 percent living nearer to quieter roads.

A similar pattern was seen among young adults but not among the elderly which the researchers suggested was because older people had multiple risk factors for high blood pressure.

"The effect of noise may become less important, or harder to detect, relative to other risk factors with increasing age. Alternatively, it could be that noise annoyance varies with age," said Bodin.

He said figures show that 30 percent of the population of the European Union hears an average traffic noise exceeding 55 decibels around the clock.   Continued...

<p>File photo shows vehicles driving past a carbon counting sign on the Deutsche Bank building in New York June 18, 2009. REUTERS/Eric Thayer</p>