Liza Minnelli deals with health issues by "replacing" body parts and "moving forward."

The 78-year-old entertainer opened up about her health in a new interview, where she urges her fans to "take care" of their bodies so they can stay healthy in their later years.

"I have one piece of advice: Take care of your body ’cause you might live longer than you expect to. I just keep replacing parts and moving forward. You just deal with it and be happy, and as Dick Van Dyke sang and taught to me, 'Put on a Happy Face,'" she told Interview magazine.

Liza has undergone hip and knee replacement operations, as well as jaw reconstruction surgery after falling onstage during a show in Sweden in 2007.

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During rehearsals for a UK tour back in 2008, Liza opened up about her health issues in an interview with the Guardian newspaper, saying: "[I've had] two [hip replacements]. And a wired-up knee. I've got two crushed discs too. Never stop moving or you'll stop moving. I go to dance class every morning and it's just good to stay strong; I like being healthy."

When asked about her jaw surgery the previous year, she said: "I've got four [teeth] missing. I had serious, serious - they took out part of my jaw, they took out all of these teeth! And because I'm a dancer, I don't complain, you just don't complain, so I was thinking, 'Ow, this really hurts' [after the fall]. And then I went to the doctor and said, 'Please give me something, this hurts me so much,'" the legendary performer said.

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Throughout her life, Liza has struggled with substance abuse issues, and was dealt another blow in 2000 after being diagnosed with encephalitis, which left her in a wheelchair.

"I had to learn to walk again, had to learn to talk again. People don't usually recover like I recovered but I would not give up. I just couldn't - I don't know how you'd do anything else ... I really worked to get back. Most people don't come through it." Liza, daughter of icon Judy Garland, added.

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