Catherine Zeta-Jones arrive at the Oscars held at Hollywood &...

Catherine Zeta-Jones arrive at the Oscars held at Hollywood & Highland Center. (Feb. 24, 2013) Credit: Getty Images

As she did in 2011, Oscar- and Tony Award-winner Catherine Zeta-Jones has checked herself in to a treatment facility to battle bipolar disorder.

Zeta-Jones' spokeswoman, Sarah Fuller, told The Associated Press in an email Tuesday that the actress, 43, "is committed to periodic care in order to manage her health in an optimum manner."

Zeta-Jones has bipolar II, which the NIMH calls a milder form that occurs in about 1 percent of the population.

Zeta-Jones has been married for 11 years to actor Michael Douglas.

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