Harwell served as a spokesman for Blue Cross-Blue Shield of Michigan. His contract with the organization, which began in 2003, ran for ten years with an option for another ten. Had Harwell fulfilled the entire contract (by which time he would have been 95 years old), Blue Cross had pledged to extend it for yet another decade. Harwell formerly ran a blog about healthy living and fitness for BCBS. He retired from it on March 5, 2009.
