Nature of world

in 1964, the surgeon general of the united states issued a famous report concluding that cigarette smoke is a direct causes of lung cancer. and since 1966, every pack of cigarettes in the united states has carried a health warning. more recently, the major role of smoking in causing heart disease has been firmly

established. smoking has been conclusively linked to many others disease as well as, including bronchitis, emphysema, layne, cancer, and pancreatic cancer. there is also maubnting evidance that simply being exposed to other people's smoke increases the risk of lung disease, especially in children despite these deadly effects, however, about 35 percent of adult men and 25 percent of adult women in the united states smoke cigarettes, averaging one and a half packs a day for a nationl grand total of some 600 billion packs a year expartment of health and human services, cigarette smoking is generally viewed as the most important behaviral risk to health, it has became a central concern of health psychologists.