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M707B TIL Ancient Egyptians and Greeks used electric fish to treat arthritis, gout and cephalalgia.
XEy0r TIL Ancient Greeks used electric currents produced by the torpedo fish to alleviate the pain of migraines, arthritis, and childbirth. This represents the first living electro-stimulation machine, a progenitor of modern Transcutaneous Electrical Nerve Stimulation (TENS) therapy.