Disclosed is a health care apparatus, comprising: a measurement unit; an input unit; and a health index calculation unit. According to the present invention said measurement unit measures an oxidation/reduction potential of a body of a person, and said input unit enters at least one of living body information other than said oxidation/reduction potential of the body. Furthermore, said health index calculation unit calculates a health index for judging a health condition, based on said oxidation/reduction potential of the body and said living body information.