nicotine itself is nothing... is a similar molecule to caffeine. it's the physical smoke going into the lungs that causes all the problems.
The additives, yes
humans are not designed to inhale smoke
Tell that to my 89 year old father that still works with us and is built like an ox, while smoking self cultivated tobacco since 70 years
It's the radioactive polonium found in the chemical fertilizer they grow it in.
Cardio pulmonary guy here. It’s the nicotine that shuts down the lungs cleaning system. Mucocilliary escalator paralyzes even from second hand smoke. Leads to copd. Nicotine bad. Also the ammonia process they use in processing ain’t doing you any favors.
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