Health Alert: Secondhand Smoke May Be More Dangerous Than Thought.
Nonsmokers can be exposed to secondhand cigarette smoke without realizing it, placing them at a higher risk for lung cancer and heart disease. In a new study, researchers found that blood tests of individuals with no history of smoking or regular secondhand smoke exposure may still indicate the presence of cotinine—a byproduct of nicotine. Lead researcher Dr. Raja Flores writes, “A crucial finding of this study is that nonsmokers are exposed to secondhand smoke without even realizing it.”
Carcinogenesis, September 2016 http://ow.ly/i/xAjJi