The thickness of the outer layer of the brain was also found to be a factor in better performing memory. Photo: befunky.com
Why do some octogenarians have exceptional memories? Emily Rogalski, Professor of Neurology at the University of Chicago, has been working in this area for years.
She says research often looks at people who are sick, and work backward to figure out how they got that way. But she is starting with people who are extraordinarily healthy to understand how they became so.
She talks to Kathryn about "superagers" - those 80 + who have the memory of someone decades younger.
