Doctors say Zeta-Jones' candor will be helpful to other adults suffering silently with bipolar.
"I think Catherine Zeta-Jones has broken a huge taboo by actually talking about bipolar. This is a serious illness that affects a good 2 to 3 percent of the population -- to actually talk about it not only bravely but with some candor is a heroic thing to do," said Dr. Soroya Bacchus, a psychiatrist. "That kind of heroism inspires people to talk about their own issues and maybe seek treatment that they never would have done unless Catherine Zeta-Jones of stature, her celebrity would have talked about this."
ABC News' Lara Salahi contributed to this report.