A Danish study published online in PLoS One found an association with traffic noise and risk of myocardial infarction. Previous studies have found an association between air pollution and MI. Not a lot of research has been published on the effect that noise has on the body and on subsequent risk. Noise in general induces a stress response in the body and is followed by elevated blood pressure, heart rate, and contraction of the arteries. Noise also leads to an increase in cortisol, a hormone associated with stress. While more research needs to be done, trying to maintain a quiet environment may be good for your health. I would like to see a study on the health effects of having the television on throughout the day with that constant noise and chatter.
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