Smoking is a contributory factor in cancers of the pancreas, bladder, kidney, stomach, and uterine cervix.
Smoking is the chief preventable cause of deaths due to cancer in the United States.
Compared with men, women smokers appear to have a higher risk of developing all cell types of lung cancer. In two recent case-control studies in Spain and Greece, women who used more olive oil had reduced risks of breast cancer. Olive oil has been shown to be protective relative to other sources of fats in some animal studies. In comparisons among countries, rates of colon cancer are strongly correlated with national per capita consumption of animal fat and meat. Higher levels of physical activity reduce risk of colon cancer - at least part of the high rates in affluent countries are probably due to sedentary lifestyle.