Nicotine stimulates Growth Hormone release and GH is linked to some cancers.
For sure many tumors respond much more intensely to GH than normal tissue. Much in the same way estrogen makes some breast cancers grow faster. So it has a carcinogenic effect, and once the cancer starts, nicotine turbocharges it. (Depending on the cancer, of course).
For sure many tumors respond much more intensely to GH than normal tissue. Much in the same way estrogen makes some breast cancers grow faster. So it has a carcinogenic effect, and once the cancer starts, nicotine turbocharges it. (Depending on the cancer, of course).