Rhiannon Ingle
While it may be a slightly macabre subject, it's clear many people out there are oddly fascinated with the process of death.
Whether it's speculations over a possible afterlife, the lead-up to the event or even what you see the moment you pass, people for centuries now have been totally transfixed with the ins and outs of, well, kicking the bucket.
Well, now, scientists have actually been able to shed some light on the latter.
You often hear people describing seeing a bright light, reuniting deceased loved ones, or having their life flash before their eyes - a phenomenon known as 'life recall'.
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In a recent study, neuroscientists were able to actually record the brain activity of a person at the moment of death for the first time.
Their findings showed that brain waves during death resemble those that occur when we dream, recall memories, and meditate, which some may find comforting.
A 2023 study published in Frontiers in Aging Neuroscience revealed that the brain can remain 'active and coordinated during and even after the transition to death, responding to the change with a programmed ending'.
This discovery came from an 87-year-old epilepsy patient, whose brain activity was being monitored with an EEG to track seizures. During the monitoring, the patient suffered a heart attack and died, providing unprecedented data.
Dr. Ajmal Zemmar, a neurosurgeon at the University of Louisville who led the study explained: "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."
For those of you out there who aren't clued up in medical jargon, oscillations are simply brain waves.
Gamma, theta, alpha, and beta brain waves are linked to dreaming, memories, and information processing, which together could produce life flashbacks.
Delta waves, by contrast, are associated with deep sleep and certain states of consciousness.
"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." Dr. Zemmar added, also noting broader implications of the findings: "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."
However, while the study led to some pretty incredible findings, it's important to note that it was based on a single patient, who had also experienced seizures and brain swelling, so further research is needed.
Still, though, Dr. Zemmar hopes the findings will be able to bring us some comfort.
"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," he concluded.