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Every man his own Doctor.
CHAP. I. Of the preservation of Health.
TO preserve health when present and to Restore if lost is the chief end of Phisick and shall be my Main design in this small tract. The word Medicina being derived amedendo that is healing such as are sick doth properly belong to the Therapu∣ticall part only, which part being most necessary was first invented yet afterwards when that part was added which shews the preservation of present health the same de∣nomination was still retained and is now