smoked one cig, turns out im allergic to one of the chemicals in them so after the er trip and my mom threatening my life ive never touched another one....but i am working on mouth cancer >.>
MMmmm, no...Smokes vary in type, potency, etc. Certain types of smoke(Let's say for this example marijuana) don't increase CEA levels, and in most cases have a reverse affect on any negative health risk previously assumed.