Gerda Saunders shares her experiences with oncoming dementia in her new memoir, Memory's Last Breath: Field Notes on My Dementia. When Saunders was in her early 60s, she received a diagnosis of microvascular disease, a precursor to dementia. As Saunders' short-term memory started failing, she began keeping "field notes" in her journal, which became the basis for her book.

This segment of "The Leonard Lopate Show" is guest hosted by Mary Harris.