The Medical Case for Validating Near-Death Experiences

According to an influential study published by The Lancet in 2001, one out of ten patients who go into cardiac arrest will return with a new core memory. This near-death experience, or NDE, is so vivid and convincing that it often reshapes the patient's worldview, their understanding of the afterlife, and their own identity.

Unlike the fragmented or disorganized experiences seen in hallucinations or delirium, NDE narratives are characterized by a high degree of clarity and persistence. When researchers have asked, many patients have identified the NDE as the most important moment of their life.

Despite decades of academic research on these experiences, little about NDEs has permeated the curriculum of medical schools. NDE researchers Marieta Pehlivanova and Bruce Greyson conducted a survey of 215 University of Virginia physicians in 2024. While very few of them held pathologizing or dismissive views about NDEs, this survey showed that the main barrier to accepting them was a simple lack of knowledge. Consequently, most of the consulted physicians expressed their wish to learn more.

Confronting Institutional Ignorance

This challenge is not unfamiliar. In many ways, it echoes the struggles faced in the field of psychedelics, another domain involving profound and often transformative experiences that remain poorly understood within mainstream healthcare. Despite widespread use and growing scientific interest, the Healthy Ecologies and Lifestyles Lab at Simon Fraser University found a lack of clear, evidence-based guidance for both the public and healthcare professionals. In response, the lab developed a community-based public health guide for lower-risk psilocybin use, and is currently developing evidence-based guidance for psychedelic-assisted therapy.

To address a similar gap in the field of NDEs, there was a pressing need to bring together the available scientific literature and provide practical steps for clinicians seeking to better understand these experiences.

A recent article published in the Canadian Medical Association Journal provides succinct guidance about what NDEs are and what to do about them. Perhaps the most salient point is that these experiences should not be viewed as an impairment or mental disturbance, as they often result in positive changes to mental health.

The article also acknowledges the elephant in the room. NDEs often feature narratives of what patients perceive as an afterlife, and they can describe out-of-body experiences which may or may not be verifiable. Yet, patient-centred, evidence-informed frameworks suggest healthcare providers should validate and explore these experiences using openness and nonjudgmental tones.

Understanding the Nature of the Experience

The main feature of the NDE is a strong feeling of belonging or being