Can Grief Actually Kill You?

Grief is often described as an emotional experience, but losing someone you love can affect much more than your emotions. Bereavement can influence sleep, appetite, concentration, energy, daily routines, physical health, and mental wellbeing. For some people, the effects can be profound.

So, can grief actually kill you?

The most accurate answer is that bereavement has been associated with an increased risk of illness and death, particularly after the loss of a spouse or partner, but grief itself should not be thought of as a direct or inevitable cause of death. Research suggests that the period following a major loss can be a time of increased vulnerability, especially for people who are older, living with existing health conditions, or experiencing significant psychological distress (Katsiferis et al., 2023; Sloth et al., 2025).

Understanding these risks does not mean that grieving is dangerous or that something is wrong when your body and mind respond strongly to a loss. Grief is a natural human response. It does mean that people who are grieving deserve care and support for their whole wellbeing.

The Widowhood Effect and Increased Mortality Risk

Researchers have studied the health effects of losing a spouse for decades. More recent research continues to find an association between spousal bereavement and increased mortality, although the size of the effect varies between people and circumstances.

A 2023 Danish register-based cohort study found that mortality risk following spousal loss differed by sex and age. Among men aged 65 to 69, for example, mortality during the first year following spousal loss was substantially higher than among comparable men who had not experienced bereavement. The effect was smaller among women, illustrating why it is important not to assume that everyone responds to bereavement in the same way (Katsiferis et al., 2023).

A much larger Danish study published in 2025 followed more than 223,000 married adults aged 65 and older. It found that spousal bereavement was associated with small increases in several causes of mortality over the following three years, including cardiovascular disease and psychiatric illness or suicide. The researchers emphasized that the absolute differences in risk were relatively small and that individual mortality risk could not be predicted accurately from the available information (Sloth et al., 2025).

These findings are important, but they need to be interpreted carefully. An increased statistical risk does not mean that a particular grieving person is likely to die because they have lost someone. It means that, across large populations, bereaved people have sometimes experienced higher rates of death than comparable people who have not recently experienced bereavement.

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Why Can Bereavement Affect Physical Health?

The connection between grief and physical health is complex.

After a major loss, the body can remain under considerable stress. Sleep may become disrupted. Appetite and eating patterns can change. Physical activity may decrease. Someone who previously relied on a partner for medication reminders, transportation, meals, appointments, or other practical support may suddenly have to manage these responsibilities alone.

There can also be significant changes in social connection. A spouse or partner may have been the person's primary source of companionship and emotional support, and their absence can dramatically alter daily life.

These changes can matter for physical health, particularly when someone already has cardiovascular disease, diabetes, respiratory illness, or another chronic condition. A recent systematic review of spousal bereavement found evidence of changes across several physical and physiological health outcomes, while also emphasizing the complexity of the relationship between bereavement and health (Ennis & Majid, 2021).

This is one reason the phrase “dying of a broken heart” can be both emotionally powerful and misleading. Grief can place substantial strain on the body, but there is no single biological pathway that explains what happens to every bereaved person.

The Heart and Bereavement

The cardiovascular system has received particular attention in bereavement research.

Studies have found associations between spousal loss and cardiovascular events, and more recent population research continues to identify cardiovascular mortality as one of the health outcomes associated with bereavement in older adults (Katsiferis et al., 2023; Sloth et al., 2025).

There is also a recognized medical condition called stress cardiomyopathy, sometimes referred to as “broken heart syndrome,” in which severe emotional or physical stress can temporarily affect the heart's ability to pump effectively. Although this condition is not synonymous with ordinary grief, it illustrates that intense emotional stress can have real physiological effects.

For someone with existing cardiovascular disease or other significant health concerns, maintaining medical care during bereavement is particularly important. Grief can make ordinary tasks feel overwhelming, but medication, medical appointments, nutrition, sleep, and other aspects of physical health still matter.

Grief and Mental Health

The emotional effects of bereavement can be just as significant as the physical ones.

Most people gradually adapt to their loss, although grief does not follow a predictable timetable. The intensity of grief can change from day to day, and reminders of the person who died may bring powerful emotions long after the loss.

For a smaller group of people, grief remains intense and disabling over an extended period. This is known as Prolonged Grief Disorder (PGD), which is now recognized in both the DSM-5-TR and ICD-11.

PGD involves persistent, intense grief that causes significant distress or impairment in daily life. It is more than simply continuing to miss someone. Symptoms can include intense yearning for the person who died, preoccupation with the loss, difficulty accepting the death, emotional pain, identity disruption, and difficulty re-engaging with life.

Research suggests that several factors are associated with a greater likelihood of developing prolonged grief symptoms. These include significant grief symptoms before the death, depression, the death of a child or partner, unexpected or violent death, multiple losses, and certain attachment-related factors (Buur et al., 2024).

Recognizing these risk factors can help people access appropriate support without suggesting that there is a “correct” way or timetable for grieving.

Grief and Suicide Risk

For some people, bereavement can be accompanied by profound hopelessness or thoughts of wanting to die. This is particularly important when grief becomes prolonged and disabling or occurs alongside depression, trauma, or other mental health difficulties.

A 2024 systematic review and meta-analysis found substantial rates of suicidal thoughts and behaviours among people experiencing Prolonged Grief Disorder, although the findings varied considerably between studies and populations (Tu et al., 2024).

Having thoughts about wanting to be with someone who has died is not necessarily the same as wanting to end your own life. However, any thoughts of suicide deserve attention and support, particularly when they become persistent, specific, or accompanied by an intention to act.

If you are concerned that you may hurt yourself or that you are in immediate danger, seek urgent help through emergency services or a local crisis service rather than trying to manage the situation alone.

Who May Need Additional Support?

There is no single profile of a person who will struggle with grief. At the same time, research has identified circumstances that can make prolonged or complicated grief more likely.

People may benefit from additional support when a death was sudden, violent, traumatic, or particularly unexpected. Losing a child or partner can also be associated with greater grief severity. Previous depression, significant grief before the death, multiple losses, limited social support, and financial or practical difficulties can also make adjustment more challenging (Buur et al., 2024).

Age and physical health can matter as well. Older adults who lose a spouse may experience changes in their health and daily routines at the same time that they are coping with profound emotional loss.

These factors are not predictions of what will happen to an individual. They simply help clinicians understand when someone may need more support.

When Can Grief Counselling Help?

Grief does not automatically require therapy. For many people, support from family, friends, community, cultural or spiritual practices, and ordinary human connection is an important part of adapting to loss.

Counselling can nevertheless be valuable when grief feels overwhelming, when someone feels isolated, or when the loss has affected their ability to function in daily life. It can also be particularly helpful when grief is accompanied by depression, anxiety, trauma symptoms, relationship difficulties, or persistent thoughts of suicide.

For people experiencing Prolonged Grief Disorder, research provides growing evidence for grief-focused psychotherapy. A 2024 meta-analysis of 22 studies involving more than 2,600 bereaved adults found that grief-focused cognitive behavioural therapies produced meaningful reductions in prolonged grief symptoms, with additional improvements in depression, anxiety, and post-traumatic stress symptoms (Komischke-Konnerup et al., 2024).

A broader 2024 review of psychotherapy for Prolonged Grief Disorder also found evidence supporting several psychological approaches, while emphasizing that the quality and consistency of the evidence varies across treatments (LaPlante et al., 2024).

Therapy is therefore not about “getting over” someone you have lost. It is about having support while you learn how to live with the reality of the loss and find a way forward that honours the relationship and the person who died.

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Can Grief Kill You?

The research gives us a more nuanced answer than a simple yes or no.

Bereavement, particularly the loss of a spouse or partner, is associated with an increased risk of mortality in some populations. The greatest vulnerability may occur during periods when emotional distress, changes in daily life, reduced social support, and existing health problems come together.

But an increased risk is not a prediction of an individual's future.

Grief is not a disease, and experiencing intense grief does not mean that you are physically unsafe. Most people gradually adapt to bereavement, even though the process can be painful and unpredictable. At the same time, taking care of your physical and mental health during a period of profound loss is important.

If you are grieving, staying connected with people you trust, maintaining medical care when needed, attending to basic physical needs, and reaching out for additional support when things become difficult can all be meaningful forms of care.

At Authentic Living London, our therapists understand that grief is not something you simply “get over.” Counselling can provide a compassionate space to talk about the person you have lost, the changes their absence has created, and the emotions that may feel difficult to carry alone.

If grief is affecting your ability to cope, your relationships, your physical wellbeing, or your sense of hope, you do not have to wait until things become unbearable before seeking support.

Grief counselling in London, Ontario may be a helpful place to begin.

CLICK HERE to book a free 15 minute phone or video consultation today.

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References

Buur, C., Zachariae, R., Komischke-Konnerup, K. B., Marello, M. M., Schierff, L. H., & O'Connor, M. (2024). Risk factors for prolonged grief symptoms: A systematic review and meta-analysis. Clinical Psychology Review, 107, 102375. https://doi.org/10.1016/j.cpr.2023.102375

Ennis, J., & Majid, U. (2021). “Death from a broken heart”: A systematic review of the relationship between spousal bereavement and physical and physiological health outcomes. Death Studies, 45(7), 538–551. https://doi.org/10.1080/07481187.2019.1661884

Katsiferis, A., Bhatt, S., Mortensen, L. H., Mishra, S., & Westendorp, R. G. J. (2023). Sex differences in health care expenditures and mortality after spousal bereavement: A register-based Danish cohort study. PLOS ONE, 18(3), e0282892. https://doi.org/10.1371/journal.pone.0282892

Komischke-Konnerup, K. B., Zachariae, R., Boelen, P. A., Marello, M. M., & O'Connor, M. (2024). Grief-focused cognitive behavioral therapies for prolonged grief symptoms: A systematic review and meta-analysis. Journal of Consulting and Clinical Psychology, 92(4), 236–248. https://doi.org/10.1037/ccp0000884

LaPlante, C. D., Hardt, M. M., Maciejewski, P. K., & Prigerson, H. G. (2024). State of the science: Psychotherapeutic interventions for prolonged grief disorder. Behavior Therapy, 55(6), 1303–1317. https://doi.org/10.1016/j.beth.2024.07.002

Sloth, M. M. B., Hruza, J., Mortensen, L. H., Bhatt, S., & Katsiferis, A. (2025). Cause-specific mortality after spousal bereavement in a Danish register-based cohort. Scientific Reports, 15, 6240. https://doi.org/10.1038/s41598-025-90657-1

Tu, J.-H., Lu, Y., Yue, Z.-C., Ling, K.-N., Xing, Y.-R., Chen, D.-D., Zhu, Z.-R., & Chen, T.-X. (2024). Suicidal incidence and gender-based discrepancies in prolonged grief disorder: Insights from a meta-analysis and systematic review. Frontiers in Psychiatry, 15, 1427486. https://doi.org/10.3389/fpsyt.2024.1427486