Posted by: prevention2 | September 7, 2010

Cigarette Smoke Harmful Even When Exposure is Low


New research from New York Presbyterian Hospital shows that even low exposure to tobacco smoke causes permanent damage to lung tissue, Healthday reported Aug. 20.

Researchers classified 121 people as nonsmokers, active smokers, or low-exposure smokers based on urine-test results. After genetic testing, researchers found that even participants who were very light smokers or exposed only to secondhand smoke exhibited cell damage to the small airway.


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