[yndoendo]

Nicotine consumption causes the vascular system to constrict and a person's heart to start beating faster to push the blood through. Similar environment to a fetus in a over pressurized antibiotic sack, too much fluid. Doctors monitor for this and may remove fluid to depressurize so the heart and other major organs don't fail. Just like alcohol, nicotine does not have any health benefits.

People often over simplify complex systems. It is not just one, smoke, but multiple factors that cause health issues. Chewing tobacco proves toxicity is not just from carcinogens and tar build up in the lungs. Vaping may decrease the probability of dramatic health issues it does not drop it to 0.

[kjkjadksj]

It's actually not the nicotine that gives you cancer in chewing tobacco. And given all this harm with cigarettes isn't it sensible that we legalize a less harmful method that people have used quite successfully to wean off cigarettes when other efforts have failed them? Social smokers/vapers are always going to exist, the buzz goes together too well with booze, but there are people who do use this stuff to actually see substantially better health outcomes.