Release date: 2006-10-19
Russian scientists have recently concluded that the experience of "sudden death" — often described as passing through a tunnel of light, meeting angels, or seeing deceased loved ones — is nothing more than a hallucination created by the brain. According to a report from Pravda on October 15th, these near-death experiences have long been the subject of speculation and spiritual belief. However, new research now suggests that they are purely psychological and physiological in nature.
Oleg Vasilyev, a researcher at the Institute of Reproductive Research under the Russian Academy of Medical Sciences, explained that approximately 60% of patients admitted to intensive care units experience a brief state of "sudden death." During this time, individuals often describe being transported through a bright tunnel, greeted by figures of light, or even meeting their deceased relatives. Some claim to receive divine welcome or see a vision of paradise. But according to recent studies, all these sensations originate from the brain during a critical moment.
The first cause of this phenomenon is hypoxia — a lack of oxygen in the brain. This condition can lead to vivid hallucinations. Second, before death, the brain releases large amounts of endorphins, which create a sense of calmness and euphoria. These chemicals are naturally produced when the body is under stress or pain. Lastly, an unusual visual effect may explain the perception of time slowing down or stretching during these moments. Dr. Vasilyev noted that dying individuals might only perceive images generated by the visual system, not those actually on the retina, and this is also linked to emotional stress.
Interestingly, similar states can occur in people who haven’t died — such as women during childbirth or individuals experiencing intense nightmares. Robert Baker, a psychologist at the University of Kentucky, suggested that when the brain faces extreme physical or mental pressure, it produces chemicals that trigger illusions as a form of self-defense. These illusions often align with cultural beliefs, religious teachings, and personal fears.
Furthermore, experiments have shown that injecting ketamine — a powerful anesthetic — into healthy individuals can induce a similar "near-death" experience. This finding supports the theory that what people describe as a glimpse of the afterlife is simply a product of the mind. As Dr. Vasilyev summarized, “There is no strong evidence for an afterlife based on these experiences. The ketamine theory offers a plausible explanation for what people believe they saw.â€
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