> As an aside the immune system also produces another neurotransmitter responsible for both immune system excitement that plays an unrelated role of emotional m

> As an aside the immune system also produces another neurotransmitter responsible for both immune system excitement that plays an unrelated role of emotional motivation in the brain. That is why antihistamines medications make people drowsy You mean histamine? I think antihistamines make people drowsy, because histamine signaling at the H1-Receptor is involved with regulation of the circadian rhythm [1][2]. As far as I know, histamine is released, as part of the immune system, by mast cells, which have to be triggered by IgE (parasite / "macro stuff" / "allergy") antibodies. Neither the "H1 receptor", "H1 antagonist", "Histamine", "Tuberomammillary nucleus" nor "Mast cell" Wikipedia article match "GABA". > because suppressing that neurotransmitter via medication occurs in utero. What does this even mean? I mean, I don't know... [1] https://en.wikipedia.org/wiki/Histamine_H1_receptor#Neurophysiology https://en.wikipedia.org/wiki/Histamine_H1_receptor#Neurophy... [2] https://en.wikipedia.org/wiki/Histamine#Sleep-wake_regulation https://en.wikipedia.org/wiki/Histamine#Sleep-wake_regulatio...