[Telepathic Intruder]

Let me be more specific: it's not natural to inject nicotine into your bloodstream, or to intentionally breathe smoke. So there will be consequences that our bodies are not able to cope with.

[jjsheridan5]

it's not natural to inject nicotine into your bloodstream

Quite the contrary. In fact, they had to change the tests for serum levels of nicotine, specifically because almost everybody has nicotine in their bloodstream. From eating vegetables.