EXHIBIT
      31







CERTIFICATION
      PURSUANT TO SECTION
      302 OF THE SARBANES-OXLEY ACT OF 2002





I,
      Stephen D. Barnhill, certify that:





1. I
      have
      reviewed this annual report on Form 10-KSB of Health Discovery Corporation
      (the
“Registrant”);




2. Based
        on my
        knowledge, this annual report does not contain any untrue statement of a
        material fact or omit to state a material fact necessary to make the statements
        made, in light of the circumstances under which such statements were made,
        not
        misleading with respect to the period covered by this annual
        report;




3. Based
      on my
      knowledge, the financial statements, and other financial information included
      in
      this annual report, fairly present in all material respects the financial
      condition, results of operations and cash flows of the Registrant as of, and
      for, the periods presented in this annual report;




4. The
      Registrant’s other certifying officers and I are responsible for establishing
      and maintaining disclosure controls and procedures (as defined in Exchange
      Act
      Rules 13a-15(e)) for the Registrant and have:




a) designed
      such
      disclosure controls and procedures, or caused such disclosure controls and
      procedures to be designed under our supervision, to ensure that material
      information relating to the Registrant, including its consolidated subsidiaries,
      is made known to us by others within those entities, particularly during the
      period in which this annual report is being prepared;




b) evaluated
      the
      effectiveness of the Registrant’s disclosure controls and procedures and
      presented in this report our conclusions about the effectiveness of the
      disclosure controls and procedures, as the end of the period covered by this
      report based on such evaluation; and




c) disclosed
      in
      this report any change in the Registrant’s internal control over financial
      reporting that occurred during the Registrants most recent fiscal quarter (the
      Registrant’s fourth fiscal quarter in the case of this report) that has
      materially affected, or is reasonably likely to materially affect, the
      Registrant’s internal control over financial reporting;




5. The
      Registrant’s other certifying officers and I have disclosed, base on our most
      recent evaluation of internal control over financial reporting, to the
      Registrant’s auditors and the audit committee of Registrant’s board of directors
      (or persons performing the equivalent functions):




a) all
      significant deficiencies in the design or operation of internal control over
      financial reporting which are reasonably likely to adversely affect the
      Registrant’s ability to record, process, summarize and report financial
      information; and




b) any
      fraud,
      whether or not material, that involves management or other employees who have
      a
      significant role in the Registrant’s internal control over financial
      reporting.






Date: March 31, 2006
            /s/ Stephen D. Barnhill,
              M.D.Stephen D. Barnhill, M.D.Chief Executive Officer and
              Chairman