Lots of people think secondhand smoke is just a disgusting annoyance -- a pervasive cloud that lurks in bars and restaurants, making your eyes water, your throat ache and your clothes just plain reek.

Sure it does all that but secondhand smoke is actually a floating menace, just as deadly for those around it as to those who smoke. Wanna know how bad it really is? Check out the frightening facts.

Once you know the truth, you'll probably want to find out how to eliminate secondhand smoke from the places where you hang out. By becoming a tobacco-free advocate, you can help change things for the better.