In the Australian Outback, the Carmody family, Paddy (Robert Mitchum), Ida (Deborah Kerr), and their teenage son Sean (Michael Anderson, Jr.), are sheep drovers, always on the move. Ida and Sean ...

But in people with dementia—which is an umbrella term for mental decline and can be related to a number of diseases such as Alzheimer's—there’s a phenomenon known as “sundowning,” where ...