Dementia affects 35 million people worldwide. Until recently, dementia sufferers were considered lost people in a living body. But thanks to a better understanding of how the brain works and how it is affected by dementia, experts and caregivers have developed a new method of caring that can help maintain the individual's personhood.

Frank and Linda's story powerfully depicts this new approach to caregiving. Through a narrative that starts with the first, early signs, it focuses on the three important aspects of...