The Daily Star reported on another doctor who believes there are five stages of dying.
With over 35 years of experience as an A&E doctor, Dr Thomas Fleischmann based his theory on conversations with hundreds of patients who have had "near-death experiences."
“The first phase, there’s a sudden change and, from one instant to another, all pain is gone," he said in a 2014 TED Talk in Hamburg.
“All anxiety is gone, all fear is gone, all noises are gone - and there’s just peace, calmness and tranquillity. Some report joy."
He characterised the second stage as an "out of body experience" with people feeling like they are "flying above themselves" and can see their body "lying down on the stretcher."
This is followed by a "comfortable" phase for around 98-99 per cent of people, adding that 2 per cent often refer to “terrible noises, terrible smells and terrible creatures”.
Stage four is when people see the light, according to Dr Fleischmann. He said this "shines into the complete blackness”, which is “very warm, very bright and very attractive”.
Around 10 per cent of people who have had a near-death experience describe the fifth stage as: “beautiful surroundings, beautiful colours, some say beautiful music and the feeling of unconditional love”.
Some scientists have suggested that people could be aware that they've died.
They suggested this is because a person's brain can still function for a short time after death. More specifically, in the cerebrum, the part that keeps you conscious after the heart has stopped.
In a 2016 study, scientists from the University of Western Ontario examined four people's bodies whose life machines had been turned off.
One person's brain waves continued, despite being dead.
Dr Parnia told Newsweek: "What's fascinating is that there is a time, only after you and I die, that the cells inside our bodies start to gradually go toward their own process of death.
"The cells don't instantly switch from alive to dead. Actually, the cells are much more resilient to the heart stopping – to the person dying – than we used to understand."
Meanwhile, over on ConspiracyTok, Brandon Monhollen pondered the concept of déjà vu.
In the viral TikTok clip, he mused: “What if when we die, the light at the end of the tunnel is the light to another hospital,” he said in the video.