Feb 16 โ€ข 09:13 UTC ๐Ÿ‡ถ๐Ÿ‡ฆ Qatar Al Jazeera

The brain may remain conscious for several hours after death

A study presented at the American Association for the Advancement of Science annual meeting suggests that death may not be instant as traditionally believed, but a biological process that unfolds over time.

A new study emerging from the annual meeting of the American Association for the Advancement of Science indicates that the process of dying may not occur instantaneously as commonly assumed. Instead, the researchers propose that the changes leading to death can be gradual, with some cellular activity continuing even after the heart stops. This revelation challenges long-held beliefs about the final moments of life and suggests that brain and body functions may linger beyond the cessation of a heartbeat.

The study draws on an extensive review of over twenty previous studies focused on near-death experiences, alongside research on animal models to explore the brain's behavior post-cardiac arrest. Some reports highlight that patients who have experienced total circulatory arrest were able to recall events occurring around them during that period, raising intriguing questions about when consciousness truly fades. Notably, prior research on rodents detected a sudden surge in gamma brainwaves in the moments following cardiac activity diminishment; these waves are typically associated with cognitive processes including awareness, memory, and sensory perception.

In two clinical cases involving human patients, researchers noted similar patterns, providing further evidence that consciousness may extend temporarily after the physiological markers of death appear. This ongoing exploration into the brain's functions at the edge of death may not only redefine our understanding of the dying process but also pose ethical implications for end-of-life care and decision-making.

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