Award-winning actress Betty White shared her secret to long life with People Magazine.

The actress spoke to People Magazine ahead of her 100th birthday, saying, “I’m so lucky to be in such good health and feel so good at this age. It’s amazing.”

But the key to her happiness, the actress and philanthropist said, is that she works to “always find the positive” in her life.

During her interview she also shared a joke about her longevity, saying that she tries “to avoid anything green” in her diet.

“I think it’s working,” she said.

White has starred in series like “The Golden Girls” and “The Mary Tyler Moore Show” over the years and says she now lives a quieter life, playing crossword puzzles and card games, according to the magazine. She also loves to watch wildlife documentaries, “Jeopardy!” and golf.

She turns 100 on January 17.