The liquid used in e-cigarettes comes in fruit and candy flavors like cherry and peppermint. Paul J. Richards/AFP/Getty Images hide caption
smoking cessation
One more coffee, one more cigarette/One more morning, trying to forget — Van Morrison, You Just Can't Win. Bob Thomas/Getty Images hide caption
Backers of California's Proposition 56 hope to hit people hard enough in the wallet that they quit smoking. Paul Sancya/AP hide caption
Going slow isn't necessarily the best route to ditching cigarettes. Patrik Stollarz /AFP/Getty Images hide caption
E-cigarettes work by heating up a fluid that contains the drug nicotine, producing a vapor that users inhale. The devices are most popular among young adults, ages 18 to 24, a federal survey indicates. iStockphoto hide caption
E-cigarettes are marketed as a safer way to inhale nicotine, but the evidence remains unclear on benefits and harms. Nam Y. Huh/AP hide caption
Smoking during pregnancy increases the risk of premature birth, stillbirth and infant death. iStockphoto hide caption
State public health departments have added Web tools to their stop-smoking aids. Eric Audras/PhotoAlto/Corbis hide caption
A woman smokes an electronic cigarette at a store in Miami. Joe Raedle/Getty Images hide caption
Stubbing that little habit out before surgery would be a very good idea. Image Source/Corbis hide caption