Flouride works the exact opposite of nicotine in the brain on acetylcholine.

Chronic fluoride toxicity decreases the number of nicotinic acetylcholine receptors in brain.

Chronic exposure to nicotine has been reported to increase the number of nicotinic acetylcholine receptors (AChRs) in brain.

The rat pineal gland contains a high density of neuronal nicotinic acetylcholine receptors (nAChRs).

The current old-age record holder is Jeanne Calment, a Frenchwoman who died in 1997 at the age of 122, after smoking for nearly 100 years.

hmmmmm - all of these facts can be googled. Maybe nicotine is not welcome in the dumbing down agenda? Fluoride is, though.