Large doses of nicotine are harmful, or even lethal, but not related to cancer
Officials from the New Mexico Department of Health Nicotine Use Prevention and Control program presented data to the committee showing that in 2023, more than a third of New Mexicans aged 18 to 29 years used some kind of nicotine product, while 22% of high school students and nearly 13% of middle school students used them
See diagram: Carnegine Carpaine, (C27H50N2O4), Pyrrolidine and Piperidine Alkaloid Carpaine, macrocyclic lactone, cardiovascular drug, affects myocardium, decreases blood pressure, amoebicide It occurs in Papaya (Carica papaya), Vasconcellea, and in many seeds
[DOI] [PubMed] [Google Scholar] Soria R, Stapleton JM, Gilson SF, Sampson-Cone A, Henningfield JE, London ED
Plenty of easy devices serve beginners well