Grief is a natural part of life and it is always individual. Researchers have tried and still try to develop different theories to interpret, explain, and approach this particular phenomenon. The aim of the authors was to review the theoretical literature of mourning and to present new bereavement theories for domestic professionals. From the first half of the 20th century until presently mourning theories have undergone significant changes. Today the determinant models includes the flexible, coping-oriented dual process model, meaning reconstruction model which focuses on the meaning making, and the model which focuses on the development after the loss. The authors conclude that experts, who work in the clinical area should know the prevailing theories of grief, because they encounter often with loss at work. The presented models may contribute to more efficient work, to better understanding of the mourning process and to a better support of families.
Keywords: bereavement; bereavement support; grief theory; gyász; gyászelmélet; gyásztámogatás; palliative care; palliatív ellátás.