brain damage/changes from nicotine?

human=mice brain?

class lie
category inductive
motivation FUD
science aversion 🟥🟥🟧

There's an oft-parroted claim that nicotine changes the juvenile brain, or causes irreperable damage in its development. This of course is bunk, based on misrepresenting rodent studies.

The human brain in 14-19 year olds is nothing like that of rats or mice in their equivalent "adolescent" stage (4-12 weeks old).
And if nicotine had such lasting effects on the human brain, "would we not have seen it?" (Tobacco had been around for a century.)

nicotine == poison

The origin assumption is certainly that nicotine is a plant neurotoxin for insects. Which of course has much less implications for humans, where it acts more like a nutrient/hormone. (When oxidized as nicotinic acid; it's also called niacin, formerly known as a vitamin b3 form [term not used anymore]).

nicotine == heroin

The hyperbolic heroin comparison from 1988 notwithstanding, that's not to say that nicotine couldn't induce a dependence by itself (even isolated from tobacco).

promote substance affinity fairly plausible🟩
changes the brain get outta here🟥

But the implication that it changes the human brain, even for individuals where it potentially promotes other substance use, is still a bit farfetched. [citation needed; but also attributing too much probability to the possibility here]

media scare phrases

  • "nicotine = brain poison🟥" (TFCA/flavorshookkids, PR agency)
  • sci-fi brain worms🟥 (FDA, CTFK?)
  • "harm adolescent brain development🟥" (CDC-OSH)
  • "Studies in rats🟧 have shown that chronic nicotine exposure during adolescence can diminish cognitive functions" (TI), and straight up lies in some more blatant tweets🟥.