Smoking is cool, because cool people smoke. Heavy smoking will knock and average of 7 years off your expected life span. When a poll was given out to smokers and none smokers people estimated a lifespan 9 years shorter than usual. People over estimate the harm done by smoking.
"Smokers are generally out going, risk takers with better sex lives", Malcom Gladwell, Tipping Point.
If you attended a room full of rockstars, models and actors, how many would smoke?
If you attended a room full of scientists, computer whizzes and techies how many would smoke?
Remember your first cigarette? What as it like? It's to do with genes too. Tests were done on mice with nicatine. One bottle of water had nicatine, one bottle was clean.
Some mice reacted to the nicatine drinking it often, some mice didn't like it (after all it is a poison). But the am ount of nicatine, it's effect, the rush is entirely genetic and also assosiated with our experience of the first hit.
Research also shows that smokers have more active sex lives, and are often more socialble than nonesmokers.