I saw that cigarettes-smokers (more than 3 cigarettes per day) often have the skin of the face which is a little bit spoiled. Is there any scientific proof that cigarette smoke (or the nicotine ...
Some say that smoking cigarettes will shorten lifespan. By how many years is the lifespan of a typical smoker shortened? What are the common cause(s) of death among smokers? Are there any known ...