What the Research Says About Memento Mori

Does memento mori work, or is it just a morbid aesthetic lifted from Stoic philosophy and printed on t-shirts? The skepticism is fair. The practice sounds like it should make things worse. You dwell on death, you feel worse about dying. That's the intuition.

The research has an answer, but the answer requires a distinction most popular discussion ignores. There are two different things people call "thinking about death," and they produce reliably different outcomes. One is associated with defensiveness, anxiety, and status-seeking. The other is associated with increases in gratitude, generosity, and meaning. The evidence is good enough to support taking the practice seriously, and honest enough to require saying where it runs thin.

Death anxiety vs. death reflection: the distinction the research draws

Terror Management Theory (TMT), developed by Greenberg, Pyszczynski, and Solomon in the 1980s and grounded in Ernest Becker's The Denial of Death, is the foundation for decades of empirical work on mortality awareness. TMT studies use "mortality salience" primes (writing about death, passing a cemetery, completing death-related word stems) and measure downstream behavior.

The early findings, which most popular summaries report, were defensive. Mortality salience produced in-group favoritism, hostility toward worldview violators, and status-seeking. The proposed mechanism was that people respond to mortality reminders by doubling down on cultural worldviews that promise symbolic immortality. Death anxiety, unstructured and defensive, was the variable being studied.

Later research complicated this picture. DeWall and colleagues (2007) found that mortality salience produces automatic attentional shifts toward positive affective information, not only defensive responses (DeWall et al., 2007). Vail and colleagues (2012) reviewed the TMT literature and documented what they called "positive trajectories" of mortality salience: conditions under which contemplating death produces increases in meaning-seeking, generosity, and intrinsic motivation (Vail et al., 2012). Which trajectory a person follows depends on how the death awareness is structured.

A recent study formalizes this as an empirical distinction. Death anxiety (avoidance, intrusion, defensive responding) and death reflection (deliberate, voluntary, meaning-oriented engagement) are measurably different constructs, not different intensities of the same thing (Anxiety or Reflection? Profiles of Death Awareness).

The practical implication: when you ask whether thinking about death helps, the answer depends on which kind. Memento mori as historically practiced, in Stoic journaling, Buddhist maraṇasati, and medieval Christian contemplation, is closer to the reflection profile than the anxiety profile. Deliberate, structured, bounded. That distinction is why the outcomes differ.

What deliberate mortality reflection actually does to people

The evidence comes from studies that vary considerably in method and population. When the same pattern appears across field experiments, laboratory studies, randomized controlled trials, and longitudinal surveys, the pattern is harder to dismiss.

Gratitude. Frias and colleagues found that death reflection produced measurable increases in gratitude compared to controls and outperformed a comparison condition designed to produce positive affect (Frias et al., "Death and Gratitude").

Prosocial behavior. In a field study, Gailliot and colleagues measured actual helping behavior among passersby near a cemetery compared to passersby at a neutral location. People who had walked past a cemetery were more likely to offer assistance (Gailliot et al., 2008). Mortality salience producing a prosocial effect, measured in real-world behavior.

Reduced terror of dying. Anālayo and colleagues ran a randomized controlled trial testing whether mindfulness practices that explicitly involved mortality reduced death anxiety compared to controls. They did (Anālayo et al., 2022). Counterintuitive if you assume exposure-makes-worse; the study suggests structured, voluntary engagement reduces ambient terror rather than amplifying it.

Lower depression in older adults. Hidaka and colleagues examined mental health outcomes in older adults who engaged in grave visitation rituals. Regular visitation was associated with lower rates of depression and apathy compared to non-visitors (Hidaka et al., 2023). The population matters: older adults for whom mortality is not abstract, not college students in a lab.

Shift toward intrinsic values. The Vail et al. review documents a consistent pattern: mortality reflection, in conditions that support it rather than triggering defensiveness, produces shifts toward intrinsically motivated behavior and away from extrinsic proxies like status and approval (Vail et al., 2012). What people actually care about becomes more salient.

The through-line is consistent across populations and methods. When mortality engagement is voluntary and structured rather than forced and uncontrolled, it tends to push behavior and values toward what people care about most.

Where the research is mixed or thin

Anyone presenting this literature as settled is overstating it. Three limits worth naming.

Replication problems on the classical TMT findings. The "mortality salience increases in-group favoritism and worldview defense" effects that anchor early TMT have faced serious replication challenges. Meta-analyses have found smaller effect sizes than originally reported, and several direct replications have failed. The defensive-response side of the literature, which is better established temporally, is now the side with the shakier replication history. The reflection-side findings are newer and have less replication track record yet, in either direction.

Individual variation matters. The positive effects documented in mortality reflection research generally come from samples of people who opted in. The literature says less about people with high baseline death anxiety or clinical death-related conditions. Importantly, the evidence does not transfer to people in acute crisis. Those forced to confront mortality through diagnosis, traumatic loss, or professional overexposure follow different psychological trajectories. Not a reason to avoid the practice. A reason to be careful about who the research was conducted on.

The mechanism is not agreed upon. The pattern of effects is real and consistent enough to trust. Why structured mortality reflection produces those effects is contested. Proposals include value-clarification (making genuine priorities visible by disrupting proxies), attentional reallocation (shifting attention from future-oriented rumination to present experience), and broader existential reorientation. These are not incompatible, but they are not the same claim.

The evidence as a whole is solid enough to take the practice seriously. It is not so settled that you should accept overclaims in either direction.

What the research suggests about practice

The evidence converges on a few points that translate directly into how a practice might be structured.

Voluntary and structured beats forced and unstructured. The positive effects appear in conditions where people chose to engage, in defined ways, for defined periods. The defensive and anxiety-producing effects appear more reliably when death is primed without consent or container. If you want what this literature documents, the choice to engage matters, and the structure around it matters.

Brief and regular over rare and intensive. No study supports the case for extended mortality binges. The research that documents positive effects uses structured exposures that are typically brief, often five to fifteen minutes, repeated across days or sessions. Consistency matters more than depth within a single session. This is also how the contemplative traditions that predate the research structured their practices: daily recollection, not annual confrontation.

Framing the activity as reflection shifts the outcome. People who approach death contemplation as a deliberate reflection practice produce different results than those who arrive at the same content through anxiety or avoidance. The framing is part of what the evidence is measuring.

The traditions had it right in form. What the research recommends, the contemplative traditions already encoded. The Stoic practice of memento mori, Buddhist maraṇasati, and Christian monastic mortality reminders are all voluntary, structured, regular, and framed as practices for the living. The research is filling in the mechanism behind forms that already existed. You do not need to wait for the research to be complete to practice something the evidence supports.

Closing

Yes, the research supports the practice. With caveats the research itself requires, but supports it. The traditions were tracking something real. The contemporary studies are naming, with more precision than tradition could, what that something is and what it requires.

The practice the evidence supports is specific: voluntary, structured, regular, and oriented toward reflection rather than anxiety. That is what Moment was built for.

For readers who want to know what to actually do with this evidence, Mortality Meditation: A Plain-Language Guide covers how to practice, and Maranasati: How to Practice Mindfulness of Death covers the Buddhist tradition's formalized approach in detail.

Frequently asked questions

Is memento mori a positive thing?

The research suggests yes, when practiced as deliberate reflection rather than ambient anxiety. Studies distinguish these as separable psychological profiles producing reliably different outcomes. Structured, voluntary engagement with mortality is associated with increases in gratitude, prosocial behavior, and meaning. Unstructured, intrusive death thoughts are associated with defensiveness and anxiety. Most popular discussion of memento mori conflates the two.

Is it healthy to think about death?

Research suggests structured, voluntary contemplation tends to produce positive psychological effects: increased gratitude, prosocial behavior, lower ambient death anxiety, and shifts toward intrinsically motivated values. Those findings apply to people engaging the practice voluntarily. Unstructured rumination, intrusive thoughts, and clinical death anxiety are different and require different responses, including professional care when the thoughts are interfering with daily functioning.

What are the benefits of contemplating death?

The documented benefits across multiple studies include increased gratitude, increased prosocial behavior, shifts toward intrinsic values, reduced ambient death anxiety, and increased meaning. These effects appear across different methods and populations, and the pattern is consistent. They are well-supported but not guaranteed in any individual case. The evidence supports treating the practice as worth doing, not as a transformation on demand.