In this Review, we look at the relation between bereavement and physical and mental health. Although grief is not a disease and most people adjust without professional psychological intervention, bereavement is associated with excess risk of mortality, particularly in the early weeks and months after loss. It is related to decrements in physical health, indicated by presence of symptoms and illnesses, and use of medical services. Furthermore, bereaved individuals report diverse psychological reactions. For a few people, mental disorders or complications in the grieving process ensue. We summarise research on risk factors that increase vulnerability of some bereaved individuals. Diverse factors (circumstances of death, intrapersonal and interpersonal variables, ways of coping) are likely to co-determine excesses in ill-health. We also assess the effectiveness of psychological intervention programmes. Intervention should be targeted at high-risk people and those with complicated grief or bereavement-related depression and stress disorders.

The Dual Process Model of Coping with Bereavement (DPM; Stroebe & Schut, 1999) is described in this article. The rationale is given as to why this model was deemed necessary and how it was designed to overcome limitations of earlier models of adaptive coping with loss. Although building on earlier theoretical formulations, it contrasts with other models along a number of dimensions which are outlined. In addition to describing the basic parameters of the DPM, theoretical and empirical developments that have taken place since the original publication of the model are summarized. Guidelines for future research are given focusing on principles that should be followed to put the model to stringent empirical test.

There are shortcomings in traditional theorizing about effective ways of coping with bereavement, most notably, with respect to the so-called "grief work hypothesis." Criticisms include imprecise definition, failure to represent dynamic processing that is characteristic of grieving, lack of empirical evidence and validation across cultures and historical periods, and a limited focus on intrapersonal processes and on health outcomes. Therefore, a revised model of coping with bereavement, the dual process model, is proposed. This model identifies two types of stressors, loss- and restoration-oriented, and a dynamic, regulatory coping process of oscillation, whereby the grieving individual at times confronts, at other times avoids, the different tasks of grieving. This model proposes that adaptive coping is composed of confrontation--avoidance of loss and restoration stressors. It also argues the need for dosage of grieving, that is, the need to take respite from dealing with either of these stressors, as an integral part of adaptive coping. Empirical research to support this conceptualization is discussed, and the model's relevance to the examination of complicated grief, analysis of subgroup phenomena, as well as interpersonal coping processes, is described.

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We propose an integrative risk factor framework to enhance understanding of individual differences in adjustment to bereavement and to encourage more systematic analysis of factors contributing to bereavement outcome (e.g., examination of interactions between variables and establishing pathways in the adaptation process). The examination of individual differences in adaptation to bereavement is essential for practical (e.g. targeting high risk individuals for intervention) and theoretical (e.g. testing the validity of theoretical claims about sources of differences) purposes. And yet, existing theoretical approaches have not led to systematic empirical examination and empirical studies in the current literature are fraught with shortcomings. Derived from Cognitive Stress Theory [Lazarus, R. S. & Folkman, S. (1984). Stress, appraisal, and coping. New York: Springer] and the stressor-specific Dual Process Model of Coping with Bereavement [Stroebe, M. S., & Schut, H. A. W. (1999). The dual process model of coping with bereavement: Rationale and description. Death Studies, 23, 197-224], the framework incorporates an analysis of stressors, intra/interpersonal risk/protective factors, and appraisal and coping processes that are postulated to impact on outcome. Advantages of using the approach are outlined. Challenges in undertaking such research are addressed.