Living in a big city offers lots of convenience: you are close to public transport, schools, hospitals, airports, shopping centers, restaurants, theaters, and beautiful parks.
The city life is always thriving, busy and noisy.
While you may enjoy city life very much, living in a noisy environment can be harmful to your health, especial to your heart.
Recent research shows that noise may disrupt your body on the cellular level, and your risk of heart disease can increase.
One recent review published in the Journal of the American College of Cardiology focuses on the influences of environmental noises on the development of heart disease.
Environmental noises include road traffic and aircrafts noises. Such noises have been shown to increase the risk of cardiovascular disease, including high blood pressure, stroke, heart failure and coronary artery disease.
The researchers checked the evidence of how environment noises change the molecular mechanisms that may lead to impaired vascular functions.
The researchers said that based on the published evidence, they found that transportation noises can induce a stress response.
This can activate the sympathetic nervous system and increase hormone levels. Both things can ultimately cause vascular damage.
This finding confirms the previous results, which show that transportation noises may increase the risk of high blood pressure and diabetes, both of which are heart disease risk factors.
The finding is also in line with previous research that shows traffic noises are linked to noise is associated with oxidative stress, vascular dysfunction, autonomic imbalance and metabolic abnormalities.
To reduce the harmful effects from transportation noises on human body, the researchers suggest that strategies like traffic management and regulation may be helpful.
In addition, developing low-noise tires may help reduce traffic noise, and air traffic curfews may reduce hazardous noise.
The researchers said as cities develop, more and more people are exposed to transportation noises. More effective legislations are important to protect public health.
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