Before Betty White died at the age of 99 on New Year's Eve, she was often asked what her secret was to a long, happy, and active life.

Oftentimes her answers came in the form of jokes. In 2011, for instance, the actress appeared on the Late Show with David Letterman and shared her "Top 10 Tips for Living a Long and Healthy Life."

"Try not to die," was one of her tips. "Avoid tweeting any photos of your private parts," and "get eight hours of beauty sleep — nine if you're ugly," were two more.

A year later, she told The New York Times that she was a "health nut" whose "favorite food is hot dogs with French fries. And my exercise — I have a two-story house and a very bad memory, so I'm up and down those stairs."

At other times, White gave advice about not taking life too seriously and living in the moment.

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"First of all, keep busy and don't focus everything on you. That wears out pretty fast. It's not hard to find things you're interested in, but enjoy them and indulge them. And I think that keeps you on your toes," she told journalist Katie Couric in 2017, marking White's 95th birthday.

White, a longtime television star who enjoyed a second wave of popularity in her 90s, was best known for her roles on The Golden Girls and The Mary Tyler Moore Show.

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White would have turned 100 on Jan. 17, and for a People profile that was meant to celebrate her centennial year, the actress spoke about how she was feeling.

"I'm so lucky to be in such good health and feel so good at this age," she said. "It's amazing."