According to the new study, people who have heart disease or lung disease and have been exposed to high levels of traffic air pollution are in more danger or having heart attacks.
Heart attacks are linked with lowered heart rate variability (HRV), a risk cause of having heeart attacks. The study was gathered from the information coming from the 30 residents in Atlanta who have suffering from heart attack and lung disease.
Patients with heart attack happen when the blood flow to a part of heart muscle becomes blocked. In the other hand, lung disease is any disorder that happens in the lungs that causes it not work properly.
Researchers from the Harvard School of Public Health found no connection between the atmospheric levels of air pollutants in the places where the participants lived and their heart rate variability. Nevertheless, portable monitoring gadgets worn by the participants within 24 hours showed an important relation between lowered heart rate variability and people that have been exposed to traffic-associated air pollutants, including elements like nitrogen oxide and carbon.
Heart rate variability measures the ability of the heart to adjust in any changes of the environment. A fall of heart rate variability shows deteriorated control of the heart by the autonomic nervous system. The researchers add the findings from the current proof connecting the short-term with people exposed in traffic-associated air pollution and lowered heart rate variability.
Harvard researchers also added that it can also explain why people died in sudden cardiac attack after an hour when they are exposed and stuck in the traffic. Moreover, air pollution cause by vehicles using gas, increased the level of risk of heart attack.