extinguish a cigarette Hand extinguishing vector illustration Stock Vector Image & Art A close-up of a hand

Blocked artery = heart attack

"It has been hypothesized that this behavior could reduce perceptions by teens that it is socially acceptable to smoke, perhaps explaining why mandated graphic warning label packs are associated with reductions in teen smoking." The study, which also involved scientists from UC San Diego Moores Cancer Center, California State University San Marcos and San Diego County Public Health Services, involved specialty cigarette packs used by the Australian government

In practice this really works well

When you smoke, the blood flow to your gums and teeth is restricted, making it harder for your immune system to respond effectively to bacterial threats