In the past decade, researchers have linked noise from airport and road traffic to increased risks of cardiovascular disease and death. Obviously, this noise triggers a stress response in the brain, which triggers the release of adrenaline and cortisol, increases blood pressure, and inflames the endothelium, blood, heart, and the lining of lymphatic vessels. From the Atlantic:
This dysfunctional endothelium interferes with blood flow and affects many other processes, which when impaired can lead to a range of cardiovascular diseases, including high blood pressure, atherosclerotic plaque, obesity and diabetes.
Studies on humans and mice have shown that endothelial cells do not work efficiently after being exposed to airplane noise at night in just a few days. This shows that loud noises are not only aimed at people who are already at risk of heart disease and metabolic problems. people. According to a study published in 2019, healthy adults suffered injuries from train recordings during deep sleep almost immediately impaired vascular function. [University Medical Center of Mainz cardiologist Thomas] Münzel and his colleagues Cardiology Basic Research.
“We are surprised that young people have endothelial dysfunction after listening to the sound for one night,” said Münzel, co-author of the 2020 Noise and Cardiovascular Health Overview Annual Public Health Review. “We have always thought that this is something that will take years to develop.”
Picture: Farris Knight (CC BY-SA 4.0)