How Loud Noise Exposure Is Linked to Heart Disease

If you live near an airport, railroad tracks or a busy road, you might be concerned about how fumes from those planes, trains and automobiles are affecting your health. But according to a new review in the Journal of the American College of Cardiology, there may be another threat to worry about: high levels of noise that may be bad for your heart. A connection between noise pollution and cardiovascular disease has been observed in numerous studies over the years, the authors of the new review said. High decibel levels from road traffic and airplanes, for example, has been linked to high blood pressure, coronary artery disease, stroke and heart failure — even after controlling for other factors like air pollution and socioeconomic status. But despite this growing body of evidence, not much is known about how, exactly, noise pollution might contribute to heart problems. In an attempt to shed some light on that question, researchers from Johannes Gutenberg University in Germany compiled and analyzed findings from dozens of previous studies on noise and various health outcomes. Based on the existing evidence, the new review suggests that noise disrupts the body on the cellular level. Specifically, researchers say, it induces stress responses and activates the sympathetic “fight or flight” nervous system. This causes a spike in stress hormones, which can eventually lead to vascular damage. Noise also seems to be a driving factor in oxidative stress and metaboli...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized are loud noises unhealthy healthytime Heart Disease heart disease risks heart health Journal of the American College of Cardiology noise level meter noise meter noise pollution noise-cancelling headphones onetime Rese Source Type: news

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Source: Klinische Monatsblatter fur Augenheilkunde - Category: Opthalmology Tags: Klin Monbl Augenheilkd Source Type: research
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