I completely quit smoking 4 years ago using e-cigarettes. I have never felt such a feeling of freedom before. Within 6 months I was diagnosed with ulcerative colitis. Painful, bloody, could not eat, could not travel. I could go on and on but I will spare you. After fighting this disease for 4 years, I finally learned of the link between smoking cessation and UC. There are some doctors that prescribe smoking for UC patients who are failed by medicines (very expensive, lots of side effects) So, I bought a pack of cigarettes and had one. Just one. I don't need nic because I am still using about 3 ml of 24mg liquid daily. My guts have not felt this much relief since I don;t know when. There is SOMETHING in a burning cigarette that helps UC. It's not nicotine. There are suggegstions that it's the small amount of carbon monoxide, hydrogen sulfate or anatabine. No one really knows. But whatever it is it does not come from standard e-liquid. When I frequented the board years ago, there was a poster who mentioned other nicotine alkaloids and suggested snusing in addition to vaping. Anyone remember who that was? I'd like to get in touch with him. I apologize for the ginormo paragraph...I wanted to split it up a little but apparently some new improved formatting does not work with my computer.