indian tobacco leaves (Lobelia inflata) This Virginian type has good uniformity producing dark cigar and pipe tobacco. Nicotiana quadrivalvis - Wikipedia

There does not seem to be a preponderance of evidence that would indicate the abolition of the use of tobacco as a substance contrary to the public health. To that authoritative statement it might be well to add the advice given me by a Washington physician after a long evening of discussing the pros and cons of smoking

Despite its growing popularity, vaping remains less common than cigarette smoking, with 7% of U.S

18 Quitting smoking reduces cancer risk Stopping smoking reduces the risk of many cancers over time

Smoking has ill effects both on blood pressure and the heart

Our analysis suggests that CR levels within tumors or liquid biopsies may be a companion diagnostic for arginine auxotrophic tumors that express ASS1 but may also benefit from arginase-based therapies