Man unexpectedly dies during brain scan. What scientists saw should give everyone comfort.
They may have uncovered the secrets of our final moments.
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A doctor is analyzing brain scans.
Death remains one of the greatest mysteries of life. It’s impossible to know what happens as a person passes and whether there’s anything afterward because no one has ever been able to report what happens from beyond the grave. Of course, if you ask those with a keen interest in the supernatural, they may say otherwise.
However, in 2021, researcher Dr. Raul Vicente and his colleagues at the University of Tartu, Estonia, became the first people ever to record the brainwaves of someone in the process of dying, and what they’ve come to realize should be very comforting to everyone. “We measured 900 seconds of brain activity around the time of death and set a specific focus to investigate what happened in the 30 seconds before and after the heart stopped beating,” Dr. Ajmal Zemmar, a neurosurgeon at the University of Louisville, US, who organized the study, told Frontiers.
The patient who died while having his brain waves measured was 87 years old and had epilepsy. While researchers were studying his brain to learn more about the condition, they had a heart attack and passed away. “Just before and after the heart stopped working, we saw changes in a specific band of neural oscillations, so-called gamma oscillations, but also in others such as delta, theta, alpha, and beta oscillations,” Zemmar said.
The different types of brain oscillations that occurred in the patient before and after the heart attack were associated with high cognitive functions, including dreaming, concentrating, memory retrieval, and memory flashbacks. Therefore, it’s possible that as the patient was dying, they had their life flash before their eyes. What an amazing and comforting experience right before leaving this mortal coil.
“Through generating oscillations involved in memory retrieval, the brain may be playing a last recall of important life events just before we die, similar to the ones reported in near-death experiences,” Zemmar speculated. “These findings challenge our understanding of when exactly life ends and generate important subsequent questions, such as those related to the timing of organ donation.”
How long are people conscious after they are technically dead?
Science has found that people can remain conscious up to 20 seconds after they are declared dead. Even after the heart and breathing have stopped, the cerebral cortex can hang on for a while without oxygen. So, some people may experience the moment when they hear themselves declared dead, but they aren’t able to move or react to the news. In cases where someone performs CPR on the deceased person, the blood pumped by the compressions can temporarily keep the brain alive as well.
Although the experience of death will probably always remain a mystery, we should take solace in the idea that, in many cases, it may not necessarily be a miserable experience but an ecstatic final burst of consciousness that welcomes us into the great beyond. “Something we may learn from this research is: although our loved ones have their eyes closed and are ready to leave us to rest, their brains may be replaying some of the nicest moments they experienced in their lives,” Zemmar concludes.
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