How bad is second hand smoke?

Take this quiz to learn about the dangers of secondhand smoke. read more

Exposure to secondhand smoke raises the risk -- by as much as 30 percent -- that others will get lung cancer and many other types of cancer, it can lead to emphysema, and it is bad for your heart. Smoke makes your blood stickier, raises your "bad" LDL cholesterol, and damages the lining of your blood vessels. read more

Secondhand smoke (SHS) is also called environmental tobacco smoke (ETS). It’s a mixture of 2 forms of smoke that come from burning tobacco: Mainstream smoke: The smoke exhaled by a smoker. Sidestream smoke: Smoke from the lighted end of a cigarette, pipe, or cigar, or tobacco burning in a hookah. read more