Caregiver stress is a research area focused on understanding the physical, emotional, and psychological strain experienced by individuals who provide care for loved ones who are ill, disabled, or elderly. This stress can be caused by a number of factors, including the physical demands of caregiving, financial strain, social isolation, and emotional challenges. Researchers in this area aim to identify risk factors for caregiver stress, develop interventions to support caregivers, and ultimately improve the well-being of both caregivers and those receiving care.