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Radium increase red blood cell - Casper (Wyoming) Daily Tribune - December 13, 1923
(sh.itjust.works)
People from the past believe radioactive element can fix your health.
correlation ≠ causation
It is amazing how many people fail at this basal logic even in the present era. There are entire political parties that exist in this cognitive void. Perhaps this radical enlightenment was an attempt by evolution to remedy humanity's limiting cognitive orbits
They just straight up lie. Law are pretty lax back then. You can have patent medicine and say whatever your medicine can do. You know, snake oil, and similar stuff like that.