why people smoke cigarettes after sex do smokers light a cigarette sex? What are the health risks? Cigarettes (and More) After Sex:

The VaporFi Rebel 3 is exactly that

"E-cigarettes are highly addictive, and for young people who start using them, the health consequences can be lifelong." The Campaign for Tobacco-Free Kids issued a similar statement, saying the decision "puts at risk the progress our nation has made in reducing youth e-cigarette use." "It conflicts with overwhelming scientific evidence and the FDA's own repeated conclusions that flavors pose a substantial risk to young people," said Yolonda C

Yes, stress increases acid secretion

Nicotine and tar from smoking can cause long term yellowing of teeth and surface staining of teeth and existing fillings

Regardless, thinking back I would definitely change my rating from the dot to the right of beneficial to entirely "beneficial." Individuals should know what they're getting themselves into ahead of time and how it can unfortunately leads to cancer/other harmful diseases