Everett Koop published a 1986 report entitled, The Health Consequences of Involuntary Smoking , in which he stated, it is now clear that disease risk due to inhalation of tobacco smoke is not solely limited to the individual who is smoking, but can also extend to those individuals who inhale tobacco smoke in room air.[4] In 1987, Congress amended the Federal Aviation Act of 1958 to ban smoking on flights less than two hours long, and in 1990, over intense opposition by the tobacco industry, prohibited smoking on all domestic flights
After reviewing more than 7,000 articles in the medical literature, the Surgeon General concluded that smoking caused lung cancer and bronchitis
Thinking of switching
Second, the data on secondhand smoke exposure were only collected at baseline, and considering the limitations of observational studies, the causal relationship between secondhand smoke exposure and the risk of CKD cannot be determined
Moreover, by cre- ating the perception of soothing the oral and throat mucosa, it masks the harsh effects of smoke and nicot- ine
