There are approximately 65.7 million unpaid caregivers in the United States with an estimated 8 percent providing care to someone with cancer. Although benefit-finding has been reported, providing care to a spouse or loved one with cancer is stressful and can have negative consequences for an individual s psychological and physical health. In cancer caregivers, studies have documented negative outcomes including symptoms of fatigue, impaired sleep quality, poor quality of life, anxiety and depression. These outcomes are of particular concern when cancer patients receive intense treatment such as hematopoietic stem cell transplantation (HSCT) where caregivers are embedded in a treatment trajectory that can extend 4 12 months. In dementia caregivers, additional outcomes have been reported including poor health habits and impaired immunity. In addition, longitudinal studies have also reported caregivers have an increased risk of morbidity and mortality, particularly from cardiovascular disease.