Our guest on ST Medical Monday is Donna Thomson, who is a co-author of "The Unexpected Journey of Caring: The Transformation from Loved One to Caregiver." As was noted of this important new guidebook by Booklist: "Caregivers often sacrifice their own health and relationships to take care of loved ones, which is a big problem in the United States, where nearly 45 million Americans provide unpaid care to an adult or child with medical problems or chronic conditions. The authors, caregiving