As the oldest woman in the world, 116-year-old Emma Morano credits her long life to a breakfast of two raw eggs every day. She also credits her longevity to staying single. She walked away from her marriage when she was 38 years old, and she’s been single ever since. “I didn’t want to be dominated by anyone,” she said.

What sustains some people to live over a century, while others struggle with poor health? With some swearing by service or beer for breakfast, there are consistencies in the lives of centenarians. And some of them may surprise you. Read more