Catherine Zeta-Jones steps out post bipolar treatment

Oscar-winning actress Catherine Zeta-Jones has returned home after leaving a facility where she was being treated for her bipolar II disorder. She was spotted driving in New York on Tuesday.

The celebrity checked herself into the facility on April 29 and was set to be there for 30 days. She was there to undergo some healthy "maintenance".

Her husband, actor Michael Douglas, described her most recent visit to the facility as a "10,000-mile check-up" and said he was proud of his wife. "She's doing a really good job," he said.

"Chicago" star revealed her diagnosis in 2011, telling media at the time that "This is a disorder that affects millions of people and I am one of them."

Bipolar disorder, formerly known as manic-depression, is typically lifelong and recurrent. People with bipolar II swing from severe depression to a milder and briefer manic state called hypomania. They aren't impaired to the extent that patients with bipolar I can be.