Study: To live near airports can weaken the heart muscle

A study led by researchers at London College showed that people who live near airports and are exposed to high levels of aircraft noise can be more vulnerable to poor heart function, which increases the possibility of heart attacks and life -threatening heart disorders, as well as strokes. The study published in the “American Cardiology Association Journal” is based on detailed exams for heart photography of 3.635 people living near 4 main airports in England. The researchers have compared the hearts of people living in areas of high levels of aircraft sound, with those living in low levels of noise. The researchers found that people who live in areas where they are exposed to the levels of aircraft noise are higher than the recommended levels, had more stiff and dense heart muscles, which allowed them to stretch and shrink less, and less effective in pumping blood over the body. This effect was clearer in people who were exposed to higher levels of aircraft noise at night, which may be due to factors such as sleep disorder, where people are mostly in their homes during the night and are therefore more exposed to noise. The researchers have also found in separate analyzes of people who are not exposed to aircraft noise, this kind of heart disorders can lead to an increase ranging from twice to four times to the risk of a ‘big heart event’ such as heart attacks, life -threatening heart disorders or strokes; Compared to people who do not suffer from these heart attacks. “Our study is a study of observation, and therefore we cannot claim that high aircraft noise levels have caused these changes in the structure and function of the heart. However, the results indicate that there is a relationship between continuous exposure to lighting aircraft and health problems. And the function of the heart was related to high blood pressure in these participants.” investigated, and the participants lived near Heathrow, Gateuk, Perlingham or Manchester airports. The researchers used estimates from the British Civil Aviation Authority for the level of aircraft noise for every 100 square meters in those areas. High noise levels are considered 50 decibel during the day and 45 decibels during the night (from 11 hours to 7 o’clock), which is higher than the recommended border by the World Health Organization. The researchers said that the noise not only affects sleep, but it can also lead to a stress response that leads to excessive activation of the sympathetic nervous system (the nerve network responsible for the reactions), causing high blood pressure, narrowing or expansion of the arteries, and the delay of digestion can lead to the discharge of the hormonekortisol ( Appetite can increase. This study showed a serious link between exposure to aircraft noise and deep health problems, which emphasizes the need to reduce these risks by taking measures to reduce healthy pollution that affects the lives of millions of people around the world.