Ruth Tillman, Vickie Naylor and OHSU coordinator Patrice Fuller walk in a neighborhood off of Martin Luther King Jr. Boulevard in Portland on March 14, 2024, as part of a research project known as Sharing History through Active Reminiscence and Photo-Imagery, or SHARP. (OHSU/Christine Torres Hicks)

In this photo from 2017, Vickie Naylor, Donna Maxey and Bernadine Clay, left to right, participate in an OHSU line of research to promote brain health through walking and reminiscing in North and Northeast Portland. Each participant remains active, including Maxey's work with Race Talks in Portland. (OHSU)

Ruth Tillman, Vickie Naylor and OHSU coordinator Patrice Fuller walk along Martin Luther King Jr. Boulevard in Portland on March 14, 2024, as part of a research project known as Sharing History through Active Reminiscence and Photo-Imagery, or SHARP. (OHSU/Christine Torres Hicks)

Vickie Naylor, at left, and Ruth Tillman walk and reminisce on March 14, 2024, in Northeast Portland as part of an innovative OHSU research project that recently demonstrated a benefit in brain health among participants who started the six-month walking program with mild memory loss. (OHSU/Christine Torres Hicks)