Why does grief hurt? A systematic review of grief and depression in adults

Grief is a major physical and psychological health concern for adults, as well as a key risk factor for depression. The direct and indirect costs of depression in adults place heavy burdens on societal resources. Indeed, bereavement is a stressful and profound life experience, with the grieving process combining reactions to a loss that may originate in complications for bereaved individuals. The goal of this systematic review is to synthesize the findings regarding depression and grief. Studies related to the topic were obtained from multiple databases through rigorous exclusion and inclusion criteria. Only empirical studies with quantitative methodologies were included. Objectives, sample (type of sample, % male, and age), instruments, and main conclusions were extracted from each study. Overall, there are personality and contextual factors that, in addition to affecting depressive reactions following a loss, may also interface with one's ability to grieve. Furthermore, after the patient's death, there was a decrease in depressive symptoms over time, indicating that these symptoms are dynamic. Individuals who experience prolonged grief exhibit depressive symptoms, and those who suffer a loss may have depressive symptoms, but in a natural and non-pathological way, that is, sadness and not depression. Depression tends to decrease over time, with the existence of more children and a focus on occupation.