Why human smokes and why it isn't bad itself in first consequence:
https://www.ncbi.nlm.nih.gov/pubmed/23426511
Excess nicotinamide increases plasma serotonin and histamine levels.
Vitamin B3 and B6 a.k.a. niacin, nicotinamid and nicotin acid
also is in a lot of energy drinks in higher dosages.
Caption this Meme
