Do you ever notice the smell of cigarette smoke on your clothes when you come home from a night at the casino? Smoking rates have steadily declined since the 1960s. But there are still a lot of places you inhale smoke from someone else’s cigarette. Exposure to secondhand smoke was responsible for more than 7,300 lung cancer deaths over a four year period, according to the Centers for Disease Control and Prevention. What can be done to reduce the risks of secondhand smoke exposure? Is the vapor from e-cigarettes less dangerous?