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A large survey has revealed that living in a polluted and noisy city for just three years can increase the risk of heart attack and heart failure by up to 43%.

In addition, several studies have shown that air pollution increases or increases the risk of dementia, impotence, respiratory diseases, loss of attention and concentration, infertility, and other diseases.

Now a Danish study has found a significant link between polluted and noisy cities and heart disease. In particular, 22,000 women living in cities have been noted for two consecutive decades. They are even affected by noise and thus their risk of heart failure increases by 43%.
On the other hand, the relationship between polluted air and toxic particles and diseases was also taken into account. The PM2.5 and other deadly particles in them can enter the bloodstream and reach the heart, brain, lungs, and other systems. It showed that contaminants of 2.5 microns can affect the elderly, children, and pregnant mothers.

The other major gas emitted by cars is nitrogen dioxide, which affects the airways. In patients with asthma and asthma, these gases exacerbate the disease and increase allergies.

In the case of heart failure, the heart cannot pump blood properly and the blood circulation in the body is affected, causing attacks of shortness of breath, fatigue and weakness, even the patient cannot do his daily work. This is because polluted air makes the arteries narrow and hard, while the brain is also affected.

Denmark’s longest research has been done by the University of Copenhagen, the record of which has been published in the Journal of American Heart Disease. Thousands of women were included in the 20-year study. The study, which began in the 1990s, ended in 2014 with data on air pollution and noise in different areas. High levels of both conditions were then linked to heart disease.

It has been found that if the amount of PM2.5 is increased to five micrograms per cubic meter, it can increase the risk of heart failure by 17%. Similarly, if the amount of nitrogen dioxide reaches 8.6 micrograms per cubic meter, the risk of heart failure increases by 10%.

Now, if the average amount of noise in an area reaches 9 decibels for 24 hours, it increases the risk of heart failure by 12%.

Thus, an increase in all three factors, such as nitrogen oxides, 2.5 PM, and noise, can increase the overall risk of heart attack by more than 40%.

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