Does physical activity knock out polluted air?
Regular exercise reduces the risk of high blood pressure, even if we live in an area where air pollution is quite significant, new research has shown.
We might be surprised to see people jogging in busy areas. It is indeed more ideal to run in a greener environment, but exercise has a beneficial effect even with higher levels of air pollution – new research shows that frequent exercise can reduce the risk of high blood pressure, even if we live in an area where air pollution more significant.
The study involved more than 140,000 people and was conducted in Taiwan. Subjects did not struggle with high blood pressure and followed their health for an average of 5 years.
It was found that those who lived very active lives and were exposed to low levels of air pollution had a small chance of developing high blood pressure. However, inactive people who were exposed to more air pollution on a daily basis had an increased risk.
“Longer-term outdoor activities in urban environments increase the uptake of air pollutants into the body, which unfortunately can only exacerbate the harmful health effects of air pollution.” said Xiang Qian Lao, author of the study, associate professor of public health and primary care at the Chinese University of Hong Kong in Shatin.
For the study, the researchers looked at the level of exposure to fine dust-like air pollution of various sizes from fossil fuels. PM2.5 is roughly thirty times smaller than the width of a single human hair, and we can breathe into the deepest layers of the lungs.
In the study participants, any increase in PM2.5 levels was associated with a 38 percent increase in the chance of high blood pressure. At the same time, all physical activity reduced risk by 6 percent.
According to the researchers, this suggests that reducing exposure to air pollution is much more effective in preventing high blood pressure.
However, regardless of the degree of air pollution, the benefits of regular exercise remained. People who exercised moderately reduced their chances of high blood pressure by 4 percent, compared with those who didn’t train anything. Respectively, those who exercised more exercise had a 13 percent lower chance of developing high blood pressure compared with the inactive.
The discoveries of the Circulation published in a trade journal.
Clarifying the risk-benefit relationship between air pollution and physical activity is important, as more than 91 percent of people around the world live in areas where air quality does not meet guidelines set by the World Health Organization (WHO), the study author said in a press release. .
“While higher levels of exercise and exposure to lower air pollution have been shown to be associated with a lower risk of high blood pressure, physical activity continued to have a protective effect – even when people were exposed to high levels of air pollution.” Said Xiang Qian Lao. He added, so the message is that exercise, even in polluted air, is a very important strategy to prevent high blood pressure.
Source: Napidoktor by napidoktor.hu.
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