Heartwire.com/ May 16, 2012/ Michael O’Riordan
Los Angeles, CA – Changes in air-pollution levels in China during the 2008 Olympic Games resulted in a reduction in biomarkers of inflammation and thrombosis, as well as other measures of cardiovascular physiology, a new study has shown.
“The common wisdom among many people is that air pollution is bad for your lungs, and also many people know that air pollution can affect the heart as well, but they think it only affects old people with preexisting cardiovascular or other health conditions,” senior investigator Dr Junfeng (Jim) Zhang (University of Southern California, Los Angeles) toldheartwire. “It might not be a concern for the young and healthy. But in this study, we really show that air pollution can clearly affect a young and healthy heart. It really tells us that everybody is affected by pollution.”
In addition, Zhang said the study, which tested the effects of pollution on 125 healthy medical residents, highlights how sensitive the human body is to pollution changes. The physiological changes in response to shifts in air pollution can be detected within a very short period of time, and this means that even short-term interventions, such as those performed in Beijing, can bring immediate health benefits to healthy people, he said.
The results of the study are published in the May 16, 2012 issue of the Journal of the American Medical Association.