how tobacco causes lung cancer Smoking is the number one cause of cancer. It about 90% of lung cases. smoke contains many chemicals that are known to cause lung cancer. If you still The Many Dangers of Tobacco

The IARC monographs, referencing studies which used various methods of smoke inhalation, concluded that a significantly greater number of pulmonary tumors occurred among mice exposed to smoke than those in the control groups

doi: 10.1126/science.1226931

These can cause heart disease, an assortment of cancers (particularly lung cancer), strokes, diabetes, chronic obstructive pulmonary disease, and infertility

The Sacred Pipe: Black Elk's Account of the Seven Rites of the Oglala Sioux

And this alters the processes of ovulation, thereby preventing pregnancy

What is included in tobacco? Tobacco is defined as all tobacco-derived or containing products, including but not limited to, cigarettes (e.g., clove, bidis, kreteks), electronic cigarettes, vaporizers, cigars and cigarillos, hookah smoked products, pipes, oral tobacco (e.g., spit and spitless, smokeless, dissolvable, gutka, chew, snuff) and nasal tobacco (e.g