The "end"of the cigarette is filled with nicotine, dosages of which you can increase or decrease, it even gives you a heating option, that increases the temperature of the end of the cigarette.
It was only a few decades ago (1920's onwards I believe) that advertisers were influencing women to smoke more. Telling them that it's cool, sexy and independent women that smoke (insert desired brand). (and telling men that they'll be manlier and more appealing to women if they smoke). They use lack of coughing, slimming down, celebrity endorsements, and flavors as incentives to attract potential and current smokers.
There are also ALOT of inappropriate sexual innuendos (entertaining too) ... just pointing them out!
I've collected the following images from Google images: