EXHIBIT
31.1




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




I,
Stephen D. Barnhill, certify that:




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




2.           Based
on my knowledge, this quarterly 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 quarterly
report;




3.           Based
on my knowledge, the financial statements, and other financial information
included in this quarterly 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 quarterly
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)) and internal controls over financial reporting (as defined in
Exchange Act Rules 13a-15(f)) 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 report is being prepared;




b)           designed
such internal controls over financial reporting, or caused such internal
controls over financial reporting to be designed under our supervision, to
provide reasonable assurance regarding the reliability of financial reporting
and the preparation of financial statements for external purposes in accordance
with generally accepted accounting principles;




c)           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 of the end of the period covered by this
report based on such evaluation; and




d)           disclosed
in this report any change in the Registrant’s internal control over financial
reporting that occurred during the Registrant’s most recent fiscal quarter (the
Registrant’s third 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, based 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:
      August 14, 2009
                            /s/
      Stephen D. BarnhillStephen
      D. Barnhill, M.D.Chief
      Executive Officer and Principal Financial
  Officer