This document provides an overview of bereavement in elderly individuals. It discusses definitions of grief, mourning, and bereavement. It describes the phenomenology and phases of grief as well as types of grief such as anticipatory grief, anniversary reactions, chronic grief, and traumatic bereavement. It examines how age impacts the grief process in older adults and some complications that can arise from bereavement including medical illnesses, psychiatric issues, and persistent complex bereavement disorder. The document also discusses neurobiological factors involved in the grief response.