title: Knowing does not imply understanding.
authors.affiliation: Baptist Easley Hospital and Greenville Health System, Easley, South Carolina.
authors.forename: George
authors.initials: G
authors.lastname: Helmrich
mesh_terms: D015914:Estrogen Replacement Therapy; D015444:Exercise; D005260:Female; D006801:Humans; D007044:Hysterectomy; D010101:Oxygen Consumption / Q000502:physiology*; D017698:Postmenopause; D013564:Sympathetic Nervous System / Q000502:physiology*