Michael Douglas’ Cancer Battle Update

There's lots of buzz on Michael Douglas today ever since his brave appearance on "Late Show with David Letterman" this week, from fans wishing him well to doctors talking about his prognosis.

Michael is continuing his chemotherapy and radiation treatments for the tumor in his throat. Dr. Travis Stork of "The Doctors" is not treating the 'Wall Street: Money Never Sleeps' star, but he says Michael has another important weapon in beating his stage four cancer.

"Positive attitude plays such a huge role in recovery," Dr. Stork tells ET. "We see it with all of our patients, particularly with cancer, because you can let it get you down or, like Michael Douglas is doing, you can say, 'Look, we're going to attack this.' If you have a positive outlook you're going to do better."