Smoking is one of the most significant risk factors for developing cancer. Tobacco smoke contains over 7,000 chemicals, many of which are carcinogens. These carcinogens damage the DNA in cells, leading to mutations that can cause cancer. Smoking is linked to various types of cancer, including lung, throat, mouth, esophagus, bladder, kidney, liver, pancreas, stomach, cervix, and even certain types of leukemia.
