How does the use of Tobacco attribute to the risk of cancer?
A. Tobacco is the chief cause of lung cancer. It is probably the most important single cause of cancers of the upper digestive tract which includes mouth, tongue, throat, eosophagus, etc. Drinkers who also smoke have increased risk of these cancers. It also contributes to the cancer of the bladder, pancreas and cervix. Since oxygen intake gets greatly reduced in case of smokers, the tendency of the genes to get mutated becomes high, which over time become malignant or cancerous.
