[Smoking habit: physiopathology and prevention]

Smoking has a history almost as old as the own leaf of the tobacco, although in fact the act to smoke was restored in the general society after the discovery of America, considering itself even beneficial for the health, but fundamentally like a social and conventional conduct of the high nobility. In XVI century the first detractors began to appear but it was necessary many years to arrive the XX century when it was begun to relate the habit to tobacco and cancer, some years after the commercialization at industrial level of this habit. At the present the social awareness is tried towards the sanitary prevention. The declaration of Warsaw, the Marco Agreement and other sanitary measures forehead the habit to tobacco, are clear examples of this medical-social restlessness that tries to exile the smoking as a social, conventional and good seen conduct to try a prevention and a greater quality of life of the individuals.