According to Johns Hopkins researchers roughly two-thirds of all cancer cases are the result of random mutations in genes that can lead to cancer growth. In plainer terms, two-thirds of all cancer cases are really nothing more than a result of bad luck.
Yesss. I can continue smoking like an 18th century chimney


But we also know there are a whole host of things that affect the chances of DNA damage developing in a dividing cell.
The chemicals in tobacco smoke, for instance, can modify DNA molecules, resulting in errors when they’re copied. The same is true of ultraviolet light.
Well...shit