By Archana Ram
January 20, 2010 at 07:48 PM EST

According to People, Survivor: Palau contestant Jennifer Lyon died in her Oregon home Tuesday night at age 37. The reality star, who appeared on the series’ 2005 installment, was diagnosed with stage-three breast cancer soon after the show ended and chose a radical bilateral mastectomy, followed by chemotherapy and tamoxifen, a drug used to prevent recurrence of the disease. Lyon was an ardent breast cancer prevention supporter and hosted many events to raise money for research.

More on the life of Jennifer Lyon on PopWatch:

Jennifer Lyon: Jeff Probst pays tribute