Smoking has no use in the body except to make the person addicted to it to feel "better" during or after they had smoked. It has no use for the human body but only disease and death. The end result of using cigarettes or smoking is either cancer or emphysema where a person suffering from it uses more than 70% of their energy just to breathe.
Talking about emphysema, it feels like I am having an emphysema while I am bathing or walking, but I have no lung issue except from the effects of my backbone squeezing my organs and my lung so I do not breathe normally especially when I am bathing.
Now back to smoking, it is reasonable that the government impose much taxes on vice products like tobacco and alcoholic beverages but sometimes we have to work on great lengths in order to enforce the restriction on using such products for a more healthier people which in a way will translate to happiness which also most of us pursue in our lives.
Video Source: YouTube