I had a niece diagnosed with schizophrenia, she heard voices and such.

Her young life was filled with cats and dogs who weren't properly cared for. Litter boxes not kept clean, etc.

That cone resembling an antenna strikes me as a possible reason schizos hear voices...

I do believe smokers have less parasite troubles, nicotine kills/repels most critters.
Diatomacious Earth is known to kill most internal parasites, even those found in the blood, can't hurt to use it long term either.