Bereavement

Abstract

Bereavement, which MeSH classifies under emotions, is the objective situation of having lost a significant person through death, and grief is the reaction to that loss. Research has moved from the founding clinical description of acute grief, through stage models of its unfolding, to the dual process model of coping and the recognition that resilience, not prolonged distress, is the most common trajectory. A minority of the bereaved develop prolonged grief disorder, now a formal diagnosis with validated criteria and targeted treatment. This article explains what bereavement is, how MeSH classifies it, its direct subtypes grief and prolonged grief disorder, the main models of how people cope, the trajectories grief follows, the boundary with disordered grief, and the neuroscience of adaptation to loss, with three interactive demonstrations.

Keywords: bereavement, grief, prolonged grief disorder

Bereavement is a universal human experience, but the psychology of how people respond to it is neither uniform nor well captured by folk intuition. The response to loss varies enormously from person to person, and the field's central task has been to describe that variation rather than assume a single normal course (#ref-bonanno-2004).

What makes bereavement a subject for cognitive psychology, and not only for clinical care, is that grief is a process of adjustment: the mind must update a web of expectations, habits, and representations built around a person who is no longer there. How that updating proceeds, why it stalls in a minority of people, and how the brain adapts to the absence are the questions the research addresses (#ref-oconnor-2019; #ref-stroebe-1999).

What Bereavement Is

Bereavement is the objective state of having lost someone significant through death, distinguished from grief, the reaction to that loss, and from mourning, the culturally shaped expression of it. MeSH files the descriptor Bereavement (D001601) under Emotions; the placement is an indexing convenience, since bereavement is more accurately a situation that provokes a complex emotional, cognitive, and behavioural reaction than an emotion in its own right (#ref-oconnor-2019).

The modern study of grief begins with Lindemann's clinical observations of survivors and relatives of victims of the 1942 Cocoanut Grove nightclub fire. He described a recognizable syndrome of acute grief — somatic distress, preoccupation with the image of the deceased, guilt, hostile reactions, and disrupted conduct — and argued that recovery depended on doing the work of grief: freeing oneself from the bond to the deceased and readjusting to an environment in which the person is missing (#ref-lindemann-1944). This notion of grief work, that mourning is an active task rather than passive suffering, framed the field for decades.

Normal grief is intense but self-limiting. Most bereaved people experience acute grief that gradually integrates into a bearable, enduring form, so that the loss is accommodated without ongoing impairment. The reaction engages the whole person: yearning and sadness, intrusive thoughts and searching for the deceased, disrupted sleep and appetite, and a reorganization of identity and routine around the absence (#ref-shear-2005; #ref-oconnor-2019).

Types of Bereavement

Bereavement, which MeSH classifies under Emotions (F01.470), has two direct subtypes in the MeSH classification: the normative reaction, grief, and its pathological extension, prolonged grief disorder. These are not parallel categories but a continuum: grief is the universal response to loss, and prolonged grief disorder is the minority outcome in which that response fails to integrate and remains intense and disabling well beyond the expected period (#ref-prigerson-2009; #ref-lundorff-2017). MeSH is an indexing vocabulary rather than a theory of grief, so the two subtypes are orthogonal distinctions it records, not an exhaustive taxonomy of bereavement responses, and the clinical literature recognizes further variants such as anticipatory and disenfranchised grief that the descriptor tree does not separate.

Neither subtype is yet a separate article on this site, so the terms are listed here rather than linked; both are treated in depth in the sections below.

Grief Trajectories: Resilience Is the Norm

The most consequential finding in bereavement research is that there is no single course of grief. Bonanno's longitudinal work identified several distinct trajectories, of which the most common is resilience: a stable, relatively low level of grief and preserved functioning throughout, without a delayed breakdown. Other trajectories include recovery, a period of elevated grief that gradually returns to baseline; chronic grief, persistent high distress; and, less often, improvement from pre-loss distress (#ref-bonanno-2004).

There is no single course of grief. Bonanno’s longitudinal work identified several distinct trajectories, of which resilience — not prolonged distress — is the most common (Bonanno, 2004). The faint grey lines show the other trajectories for comparison.

This reframing overturned a clinical assumption that intense grief work was both normal and necessary, and that its absence signalled pathology or denial. The evidence is the opposite: resilient individuals who show little overt grief are not suppressing a reaction that will later erupt, and their trajectory is the statistically typical one, not a warning sign (#ref-bonanno-2004). Recognizing the heterogeneity of grief is what allows the field to distinguish a difficult but normal reaction from a disordered one, rather than treating all intense grief as either healthy or pathological (#ref-lundorff-2017).

The Dual Process Model of Coping

How do people who adapt actually cope? Stroebe and Schut's dual process model proposes that healthy coping is not a steady confrontation with loss but an oscillation between two kinds of stressor. Loss-oriented coping engages the grief itself — the yearning, the memories, the meaning of the death. Restoration-oriented coping attends to the secondary demands the death creates: new responsibilities, changed roles, the practical business of a reorganized life (#ref-stroebe-1999).

Healthy coping is not steady confrontation with the loss but a dynamic oscillation between engaging the grief and attending to the practical demands of a reorganized life. Taking respite from grief is part of coping, not a failure of it; both extremes carry risk (Stroebe & Schut, 1999).

The model's key claim is that adaptive coping requires dynamic oscillation between these two orientations, and also between confronting and avoiding each — taking respite from grief is part of coping, not a failure of it. Someone who only confronts the loss, with no restoration-oriented respite, and someone who only throws themselves into practical restoration, never processing the loss, are both at risk; the healthy process moves back and forth (#ref-stroebe-1999). The model thus incorporates Lindemann's grief work as one pole while correcting its implication that unbroken confrontation with the loss is required (#ref-lindemann-1944; #ref-stroebe-1999).

From Normal Grief to Prolonged Grief Disorder

For a minority of the bereaved, grief does not integrate. It remains intense, preoccupying, and disabling long after the loss, a condition now formalized as prolonged grief disorder. Prigerson and colleagues established the empirical criteria, showing that a syndrome of persistent, impairing yearning and preoccupation, distinct from depression and anxiety, could be identified and validated for inclusion in DSM-V and ICD-11 (#ref-prigerson-2009). The disorder is defined not by the presence of grief but by its persistence past the point of expected integration — operationalized as at least twelve months after the loss in adults — together with functional impairment.

• ✓Loss ≥ 12 months ago (adult)
• ✓Persistent, intense yearning or preoccupation
• Clinically significant functional impairment

The diagnosis is a logical conjunction: duration, intense persistent yearning, and functional impairment must all hold. Failing any one means the reaction falls short of the disorder, which is what gives the criteria their specificity and separates the roughly one in ten with genuinely disordered grief from the many whose intense grief is normal (Prigerson et al., 2021; Lundorff et al., 2017).

A systematic review and meta-analysis put the prevalence of prolonged grief disorder at roughly one in ten bereaved adults, higher after the loss of a child or a violent death, confirming that it is a real but minority outcome rather than the normal course of grief (#ref-lundorff-2017). The criteria were refined for DSM-5-TR, and the PG-13-Revised scale was validated to screen and measure the disorder, sharpening the threshold that separates it from normal grieving (#ref-prigerson-2021). Boelen and colleagues' cognitive-behavioural model explains how the disorder is maintained: negative global cognitions about the self and the future, a failure to integrate the loss into autobiographical memory, and anxious and depressive avoidance strategies that prevent the very processing grief requires (#ref-boelen-2006).

Figure

Worked Example: Screening for Prolonged Grief Disorder

Prolonged grief disorder is distinguished from normal grief by three joint conditions, all of which must hold: the loss occurred at least twelve months ago (in adults), the person reports persistent, intense yearning or preoccupation with the deceased, and the grief causes clinically significant functional impairment. Applying the criteria is a conjunction, not a sum — failing any one condition means the grief, however painful, is not the disorder (#ref-prigerson-2021; #ref-prigerson-2009).

Only Person A meets all three conditions. Person B's grief may be just as intense, but at four months it falls within the expected period and cannot yet be called prolonged. Person C yearns intensely a year on but functions normally, so the grief, though enduring, is not disabling. Person D is impaired a year on but without the defining yearning or preoccupation, pointing to a different problem such as depression. The conjunction is what gives the diagnosis its specificity: it separates the roughly one in ten whose grief has genuinely failed to integrate from the many more whose intense grief is painful but normal (#ref-lundorff-2017; #ref-boelen-2006).

Discussion

Bereavement research is a case study in how a field corrects its own intuitions with data. The founding framework — Lindemann's grief work and the stage models that followed — assumed that recovery required sustained confrontation with the loss and that intense grief was the normal, necessary path (#ref-lindemann-1944). Two lines of evidence overturned that picture. Bonanno's trajectory studies showed that resilience, not prolonged distress, is the most common outcome, and that minimal grief is not pathological suppression (#ref-bonanno-2004). The empirical test of stage theory showed that grief does not proceed through fixed, ordered stages at all (#ref-maciejewski-2007).

What replaced the old picture is more differentiated and more useful. The dual process model describes coping as oscillation rather than steady confrontation, legitimizing respite from grief as part of adaptation (#ref-stroebe-1999). The recognition of prolonged grief disorder, with validated criteria and a cognitive-behavioural account of its maintenance, carved out the genuine minority who need clinical help without pathologizing normal grief (#ref-prigerson-2009; #ref-boelen-2006). Targeted treatment for that minority outperforms generic therapy, which matters precisely because the disorder had been missed or misdiagnosed as depression (#ref-shear-2005).

Current Directions

The formalization of prolonged grief disorder is the field's most active front. Its inclusion in ICD-11 and DSM-5-TR required criteria that reliably separate the disorder from normal grief and from depression, and the validation of the DSM-5-TR criteria alongside the PG-13-Revised scale provides the measurement tools to do so across settings and cultures (#ref-prigerson-2021). The epidemiological work that followed establishes the base rate against which any screening instrument must be calibrated, so that a diagnosis flags the genuinely disordered without sweeping in the normally grieving (#ref-lundorff-2017).

A second front is the psychobiology of grief. O'Connor's synthesis traces how the body, mind, and brain adapt to loss, including evidence that reminders of the deceased engage reward-related circuitry — a neural signature of the yearning that defines the acute reaction and, in exaggerated form, prolonged grief disorder (#ref-oconnor-2019). Linking the clinical syndrome to a reward-learning account of how the brain updates its model of a world that no longer contains the attachment figure is the direction in which the cognitive and the clinical literatures are converging (#ref-oconnor-2019; #ref-boelen-2006).

Common Misconceptions

“Grief proceeds through five stages.”

The five-stage model is not supported by evidence. When the indicators of grief are tracked over time, acceptance is the most endorsed from early on and grief does not move through fixed, ordered stages (#ref-maciejewski-2007).

“Intense, prolonged grief is the normal and healthy response.”

Resilience — a stable, relatively low level of grief with preserved functioning — is the most common trajectory. Minimal overt grief is typically genuine adaptation, not suppressed or delayed distress (#ref-bonanno-2004).

“Taking a break from grieving is a sign of denial.”

The dual process model shows that oscillating away from the loss to attend to ongoing life is part of healthy coping, not avoidance of necessary grief work (#ref-stroebe-1999).

“Prolonged grief disorder is just a label for ordinary sadness after a death.”

The disorder requires persistent, intense, disabling yearning beyond about a year, affects roughly one in ten bereaved adults, and is distinct from both normal grief and depression (#ref-prigerson-2009; #ref-lundorff-2017).

Glossary

Acute grief

:

The initial, intense reaction to a loss, marked by yearning, preoccupation with the deceased, and disrupted functioning, which in most people integrates over time.

Bereavement

:

The objective situation of having lost a significant person through death, as distinct from grief, the reaction, and mourning, its expression.

Emotions

:

The broader MeSH category under which bereavement is indexed, though bereavement is better described as a situation provoking a complex reaction than as an emotion itself.

Grief

:

The emotional, cognitive, and behavioural reaction to loss through death; the normal, self-limiting response and a direct MeSH subtype of bereavement.

Grief work

:

Lindemann's idea that mourning is an active task of loosening the bond to the deceased and readjusting to their absence, rather than passive suffering.

Loss-oriented coping

:

In the dual process model, coping that engages the loss itself — the grief, memories, and meaning of the death.

Mourning

:

The culturally shaped, outward expression of grief through ritual, custom, and behaviour.

Oscillation

:

The dynamic back-and-forth between loss-oriented and restoration-oriented coping that the dual process model identifies as adaptive.

Prolonged grief disorder

:

A diagnosable disorder in which grief remains intense, persistent, and disabling beyond the expected period; a direct MeSH subtype of bereavement.

Resilience

:

The most common grief trajectory: a stable, relatively low level of grief with preserved functioning, without delayed breakdown.

Restoration-oriented coping

:

In the dual process model, coping that attends to the secondary demands a death creates — new roles, responsibilities, and the practical business of life.

Stage theory of grief

:

The popular model of fixed, ordered emotional stages after loss, which empirical tests of grief indicators over time do not support.

Trajectory

:

A pattern of grief severity over time; the main patterns are resilience, recovery, and chronic grief.

Yearning

:

The persistent longing for the deceased that is the defining feature of acute grief and, in exaggerated and lasting form, of prolonged grief disorder.

Key Researchers

Paul A. Boelen

(Utrecht University) developed the cognitive-behavioural conceptualization of complicated grief, identifying the negative cognitions and avoidance that maintain a disordered grief reaction. Utrecht profile · ORCID 0000-0003-4125-4739

George A. Bonanno

(Columbia University) reframed resilience as the most common response to loss and mapped the heterogeneous trajectories of grief, overturning the assumption that intense grief work is universal and necessary. Columbia profile · ORCID 0000-0002-8260-4435

Mary-Frances O'Connor

(University of Arizona) leads the psychobiology of grief, mapping how the body, mind, and brain adapt to loss, including the reward-system response to reminders of the deceased. Arizona profile · ORCID 0000-0001-5961-6350

Holly G. Prigerson

(Weill Cornell Medicine) led the empirical validation of prolonged grief disorder criteria across DSM-V, ICD-11, and DSM-5-TR, and co-developed the PG-13 and PG-13-R assessment scales. Weill Cornell profile · ORCID 0000-0002-7075-4268

M. Katherine Shear

(Columbia University) developed and trialed complicated grief treatment, the first targeted psychotherapy shown in a randomized controlled trial to outperform standard interpersonal psychotherapy for the disorder. Columbia profile · ORCID 0000-0001-6163-1816

Margaret S. Stroebe

(Utrecht University and University of Groningen) co-developed the dual process model of coping with bereavement, the dominant framework describing oscillation between confronting loss and attending to restoration. Utrecht profile · ORCID 0000-0002-8468-3317

Frequently Asked Questions

What is the difference between bereavement, grief, and mourning?

Bereavement is the objective situation of having lost someone through death; grief is the internal reaction to that loss; and mourning is its culturally shaped outward expression through ritual and custom (#ref-lindemann-1944).

Does grief happen in five stages?

No. The popular five-stage model is not supported by evidence. When the indicators of grief are tracked over time, acceptance is the most endorsed indicator from early on and grief does not move through fixed, ordered stages (#ref-maciejewski-2007).

What is the most common response to losing someone?

Resilience: a stable, relatively low level of grief with preserved functioning. It is the statistically typical trajectory, and minimal overt grief usually reflects genuine adaptation rather than suppression (#ref-bonanno-2004).

What is the dual process model of coping?

It describes healthy coping as oscillation between loss-oriented coping, which engages the grief itself, and restoration-oriented coping, which attends to the practical demands of a reorganized life (#ref-stroebe-1999).

What is prolonged grief disorder?

It is a formal diagnosis for grief that remains intense, preoccupying, and disabling beyond the expected period (about twelve months in adults), with persistent yearning and functional impairment, distinct from depression (#ref-prigerson-2009; #ref-prigerson-2021).

How common is prolonged grief disorder?

A systematic review and meta-analysis estimates it affects roughly one in ten bereaved adults, with higher rates after the loss of a child or a violent or unexpected death (#ref-lundorff-2017).

Can prolonged grief be treated?

Yes. Targeted complicated grief treatment has been shown in a randomized controlled trial to outperform standard interpersonal psychotherapy, and cognitive-behavioural approaches address the cognitions and avoidance that maintain the disorder (#ref-shear-2005; #ref-boelen-2006).

What happens in the brain during grief?

Research on the psychobiology of grief finds that the brain must update its model of a world without the attachment figure, and that reminders of the deceased can engage reward-related circuitry underlying the yearning central to grief (#ref-oconnor-2019).

References