A hidden threat has been found.
A recent study has highlighted the potential health risks associated with living near airports, particularly the impact of aircraft noise on heart health. Researchers found that individuals who are regularly exposed to high levels of aircraft noise may experience increased heart problems, including a higher risk of heart attacks, strokes, and irregular heartbeats. The study, published on January 8 in the Journal of the American College of Cardiology, revealed that residents living near noisy airports had significant changes to their heart structure and function, with their heart muscles becoming thicker and stiffer over time, making the heart less effective at pumping blood.
The study analyzed MRI heart scans of over 3,600 people living near major airports like Heathrow and Gatwick in the UK and compared these scans with aircraft noise data. Researchers found that people exposed to high aircraft noise—defined as more than 50 decibels during the day and 45 decibels at night—had an increased heart mass and thicker heart walls, leading to impaired heart function. These structural changes could quadruple the risk of heart-related events such as heart attacks and strokes.
In particular, night-time aircraft noise raised concerns, as it has been shown to negatively affect sleep, which in turn could contribute to the observed heart health issues. The constant noise exposure may also trigger the body’s stress response, increasing blood pressure and releasing stress hormones like cortisol, which can lead to weight gain and other long-term health complications. The study points out that people in lower-income areas, where such noise levels are common, may be particularly vulnerable to these health risks.
The research adds to a growing body of evidence suggesting that environmental noise, particularly from air traffic, has a significant impact on cardiovascular health. While the study did not prove direct cause-and-effect relationships, the findings underscore the importance of addressing noise pollution as a public health issue. The study’s authors call for further research into the long-term effects of aircraft noise, especially for those with the highest levels of exposure.
The study’s findings align with growing concerns about noise pollution’s effects on health. Experts suggest that measures like reducing aircraft noise, improving urban planning, and increasing public awareness could help mitigate these risks. As noise pollution continues to rise in rapidly developing regions, such as Latin America and Africa, addressing its effects on public health becomes increasingly crucial.
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