 Family caregiving is recognized as a significant public health problem, with approximately 66 million adult family caregivers in the United States providing services valued at an estimated 450 billion per year. These individuals are considered informal caregivers, in contrast to formal, paid caregivers such as nurses. Family caregivers suffer role strain and burden of caring that increases their risk for morbidity and mortality, which is the reason why they have been the focus of much caregiver research in recent decades. Improving health outcomes for family caregivers of cancer patients has involved developing approaches to reduce stress by boosting caregiver preparedness, mastery, and self-efficacy; however, in recent years there has been a progressive shift in the way the cancer caregiving experience has been characterized. This characterization has moved away from a focus on the individual to a focus on the caregiver-patient dyad. This shift has occurred, in part, because research has shown that each person in the dyad impacts the way in which the other person adjusts to hisher new role and responsibilities. Thus, the way this occurs is important since these adjustments not only influence the health of the dyadic relationship but also impact the couple s overall well-being. 