One of my extended family members is a former smoker. Nagging him to stop did little good. Warning him against its health dangers produced similarly poor results. He was addicted, and he appeared to like smoking, anyway. 

Then e-cigarettes came along. After giving them a try, he quit cigarettes for good. No nagging was necessary. He received the same kick from vaping minus all the nasty smoke that makes cigarettes so dangerous. His blunted sense of smell and taste returned to normal and breathing became easier. 

His story is not unique. Many former smokers credit e-cigarettes with changing their lives for the better. A study in the journal Tobacco Control concluded that...

It is well documented that cigarette smoke causes lung cancer, but giving up nicotine still proves to be the most challenging part of quitting cigarettes. 

Of all the available smoking cessation aides, electronic cigarettes (e-cigarettes) have gained the most popularity - likely because they are designed to simulate the cigarette-smoking experience.  E-cigarettes are battery operated wands that contain liquid nicotine, which when heated, emit an aerosol that can be inhaled (vaped). 

Due to the relatively short history of e-cigarettes, there are some unanswered questions about their long-term health safety.  Studies up to this point have suggested that vaping is safer than smoking because it does not expose a person to the inhaled toxins found in cigarette smoke that can...