Michael Douglas offers some interesting insight as to how he may have developed the throat cancer that he was diagnosed with in August 2010. In January, Douglas told the "Today" show that his tumor was gone. He's one of several stars who have battled cancer or been affected by the disease.
Angelina Jolie announced in May 2013 that she had undergone a preventive double mastectomy after learning she carries a mutation of the BRCA1 gene, which sharply increases her risk of developing breast and ovarian cancer. Jolie's mother died from ovarian cancer in 2007.
Actress Christina Applegate had a bilateral mastectomy in 2008. Doctors had diagnosed her with cancer in her left breast and offered her the options of either radiation treatment and testing for the rest of her life or removal of both breasts.
KISS band member Peter Criss sat down with CNN's Elizabeth Cohen in 2009, a year after his battle with breast cancer. The musician said he wanted to increase awareness of the fact that men can also get the disease.
Cynthia Nixon not only joined the cast of Showtime's "The Big C," about a woman battling the disease, and portrayed a woman with cancer in the Broadway play "Wit," she was diagnosed with breast cancer in 2006.
Zoraida Sambolin was diagnosed with breast cancer on April 9, and has chosen to have a double mastectomy. "Angelina empowered me to share my story," she writes for CNN.
"Good Morning America" co-host Robin Roberts had been cancer-free for five years in 2012 after beating breast cancer when she revealed she had been diagnosed with myelodysplastic syndrome, also called MDS.
"Three's Company" star Suzanne Somers spoke with CNN's Piers Morgan in 2012 about her stem cell surgery and her bout with breast cancer. She was diagnosed in 2001, which is when she began researching alternative methods to reconstructive surgery.
Olivia Newton-John was diagnosed in 1992, and the singer has become an advocate for breast self-examination.