Can we say nicotine has nothing to do with mental illness? Because the mentally ill really like their cigs!
And since mapacho is so strong you can get the effects without even inhaling the smoke, which is healthier for the lungs.
Mapachos are used to clean out bad energies and keep bad spirits away.
https://slatestarcodex.com/2016/01/11/schizophrenia-no-smoki...