Debra Jenson, 2, hanging from a hook in her grandmother's kitchen. "Over the next 35 years, I watched each of my cousins, then my own children and my cousins' children be dangled from that hook. Between the photo and watching it happen to others, this is a powerful 'fake memory' for me." Debra Jenson/Instagram hide caption

itoggle caption Debra Jenson/Instagram

Seniors who learned more difficult skills like digital photography and Photoshop showed the greatest improvement in memory. Courtesy of UT Dallas hide caption

itoggle caption Courtesy of UT Dallas

The brain edits memories of the past, updating them with new information. Scientists say this may help us function better in the present. But don't throw those photos away. iStockphoto hide caption

itoggle caption iStockphoto

Researchers have only recently been able to use brain scans to detect Alzheimer's risk factors in living people. iStockphoto hide caption

itoggle caption iStockphoto

Having a perfect memory can put a strain on relationships, because every slight is remembered. Katherine Streeter for NPR hide caption

itoggle caption Katherine Streeter for NPR

Playing this game won't make you feel older, unless you're already getting up there in age. iStockphoto.com hide caption

itoggle caption iStockphoto.com

The underlying biology of age-related memory glitches — in old mice and old people — is different from what happens with Alzheimer's, recent research suggests. Anthony Bradshaw/iStockphoto.com hide caption

itoggle caption Anthony Bradshaw/iStockphoto.com

Lou Ann Schachner, 84, and Jay Schachner, 81, are volunteers with the Northwestern University SuperAging Project. They keep track of all their plans in a shared calendar. She loves to cook and study French and he is a part-time tax lawyer. Samantha Murphy for NPR hide caption

itoggle caption Samantha Murphy for NPR