A recent analysis in the United States identified 55,000 centenarians (people 100 years and older), most of whom were women (The Centenarian Population 2007-2011).
A study looked to find out what they were thinking about and what lifestyle factors might be contributing to their longevity.
Telephone surveys were conducted with 104 of the US residents who were or will be 100 in 2014, and 302 peopl...