Smokers who avoid inhaling may decrease their risk slightly, but are still exposed to lip, mouth and tongue cancer
Smoking is currently
the Number One cause for Lung Cancer throughout the world. This
then makes it also the easiest cause that can be prevented.
Smoking is defined by Wikipedia
as the "inhalation of smoke from one end of the cigarette".
Therefore, smoking has been linked to incidences of lung cancer throughout the world (through the use of observational studies). Wikipedia claims that "smoking men are 22 times more likely to die from lung cancer than non-smoking men and smoking women are 12 times more likely to die from lung cancer than non-smoking women." This shocking discovery has actually heightened the awareness that smoking is harmful to the body, but due to aggressive marketing by tobacco companies and the influence of the media, tobacco is still going strong.