Broadcast journalist Mary Ellen Geist left her big-time reporting life and returned to her family home in Michigan to help her mother care for her father, who suffers from Alzheimer's. She felt her parents' lives were in a downward spiral, she missed her family and her father needed surgery. Maybe it was also a midlife crisis—certainly her friends were having them. "So," she said to herself, "if you're going to have one, why not help your parents during it?" Three years later, we talk to Mary Ellen about her experience and her new book, Measure of the Heart: A Father's Alzheimer's, A Daughter's Return. Click here to read her touching story.