Diversified Healthcare Trust (DHC) 10-Q 2019 Q3 Quarterly report

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SEC. 1350

In connection with the filing by Senior Housing Properties Trust (the “Company”) of the Quarterly Report on Form 10-Q for the period ended September 30, 2019 (the “Report”), each of the undersigned hereby certifies, to the best of his or her knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Adam D. Portnoy	/s/ Jennifer F. (Francis) Mintzer
Adam D. Portnoy	Jennifer F. (Francis) Mintzer
Managing Trustee	President and Chief Operating Officer
/s/ Jennifer B. Clark	/s/ Richard W. Siedel, Jr.
Jennifer B. Clark	Richard W. Siedel, Jr.
Managing Trustee	Chief Financial Officer and Treasurer

Date: November 7, 2019