In this Friday, July 12, 2013 photo, June Springer answers a phone in another office, where she works at Caffi Contracting Services, in Alexandria, Va. Springer, who just turned 90, wor

 

              In this Friday, July 12, 2013 photo, June Springer answers a phone in another office, where she works at Caffi Contracting Services, in Alexandria, Va. Springer, who just turned 90, wor
In this Friday, July 12, 2013 photo, June Springer answers a phone in another office, where she works at Caffi Contracting Services, in Alexandria, Va. Springer, who just turned 90, works as a receptionist. People who delay retirement have less risk of developing Alzheimer's disease or other types of dementia, a study of half a million people in France found. (AP Photo/Alex Brandon)