Cynthia Nixon Beats Breast Cancer, Becomes Advocate

"They love her. They call her Mom," Nixon said. "They call me Mommy. My son is very funny. Sometimes he says Mom, and it's obvious he means both of us or either of us. He just says Mom and whoever answers is fine," Nixon said.

(Courtesy Susan G. Komen )
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Breast cancer was a subject "Sex and the City" tackled long before Nixon's diagnosis. Nixon said she believes the show handled story of the Samantha character's cancer "beautifully."

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Now doing well, Nixon will become the official spokeswoman for the Susan G. Komen for the Cure Foundation for the next year.

"I want them [women] most to hear me saying that the only thing we have to fear is fear itself. So the only thing to really be afraid of is if you don't go get your mammograms, because there's some part of you that doesn't want to know, and that's the thing that's going to trip you up. That's the thing that could have a really bad endgame," Nixon said.