How to Stay Mentally Sharp Into Your 80s and Beyond

Researchers studying “super agers,” people over 80 who have mental faculties of people decades younger, said strong social relationships are important for keeping brains sharp.

The same is true for people who live beyond 100, said Stacy Andersen, a behavioral neuroscientist at Boston University and co-director of the New England Centenarian Study.

“They have a purpose. They have things they want to go out and do every day,” Andersen said.