Running protects lungs from air pollution

Air pollution is not a good thing for everyone, especially for runners and riders, because they breathe more air and breathe directly from their mouth (a layer less filter than if you breathe with your nose). Pollutants can penetrate deep into the lungs, making it more difficult or inflamed to obtain oxygen, and even causing asthma and chronic obstructive pulmonary disease. This is why we still need to avoid exercising outdoors even in hot summers.

　　But researchers in St. Paul suspect this suggestion. Indeed, pollutants can make it more difficult or Inflammation, but aerobic exercise can inhibit difficulty in obtaining oxygen and inflammation. Therefore, exercising in polluted air may have the benefits outweigh the disadvantages. To prove this theory, they used mice to test it. They first collected diesel particles discharged from the exhaust pipes of the city buses, and then divided the mice into four groups:

　　The first group: Do nothing

　　The second group: Do five exercises a week, do five weeks in total

　　The third group: inhaling diesel exhaust gas and not doing any exercise

　　The fourth group: Carrying in an environment of diesel exhaust pollution After five weeks of observation, they conducted a series of tests to test the lung condition of each group of mice. Here is a simple table showing the nitric oxide content in their exhaled breath.

　　It is very obvious that the diesel exhaust environment (DEP) is the main reason for the nitric oxide in the exhaled breath - but the exhaled nitric oxide of the mice in the exercise did not change much. Other tests performed also proved a result: running can protect the lungs of mice from contamination.

　　Rats are not humans, so we still have to try this The test results are reserved. But if you are asked to choose between running by a beautiful river and running on a four-lane highway, you will undoubtedly choose the former. If you are asked to exercise outdoors with air contaminated or not exercise at all, the results of this study tend to tell you not to think too much and wear sports shoes! The researchers concluded:

　　In general, our research results show that aerobic exercise can help reduce lung inflammation in mice in diesel exhaust environments, and also reduce the incidence of lung inflammation in the contaminated atmosphere.