Betty White was a national treasure and her plan for staying young was quite simple. She once said, “Just focus on the positive.” That must have been her secret to longevity because she was known not to follow an especially healthy diet. She once tweeted that her favorite food was a hot dog with fries, but she claimed to get her exercise because as she put it, “I have a two-story house and a very bad memory, so I'm up and down those stairs."
