Sister station WPVI in Philadelphia was at Granite Farms Estates, where Sarah Nader marked her 105th birthday at a party.
Nader served during World War II as a member of the Women's Army Corps.
We asked for her secret to a long life, and she got a very candid answer.
She said, "Oh, the kissing. Jack - A lot of kissing?"
Nader also advises staying close to friends and family, and enjoying laughs together. That also helps to keep her young.