Many of us might wonder what happens after the death of a human?
Or how the dead humans come back to life and say they saw light at the end of the tunnel.
A recent study shows that even though the the body is dead the brain works actively and that’s how the mind is alive even after the death of the human.
According to researchers in New York, a person’s brain is still active after death, meaning in many cases they can be aware that they’ve passed away.
Just like the movies which is all about the horrifying ghosts leading half-life or rebirth of the same human being, science also proves this fiction as reality.
A team from New York University’s Langone School of Medicine has been studying patients who have suffered cardiac arrest or a heart attack, which stopped their hearts for a brief period.
In a 2014 study, physicians interviewed over 100 people who had gone into cardiac arrest and been successfully resuscitated: 39 percent of them described a perception of awareness, even if they couldn’t recount specifics. One woman in a similar, earlier study, described a feeling of floating above her body and watching as the doctor called a “code blue.”
Death, in a medical sense, is when the heart stops beating and cuts off blood to the brain.
This means the brain’s functions also stop and can no longer keep the body alive.
Parnia explained that the brain’s cerebral cortex — the so-called “thinking part” of the brain — also slows down instantly, and flatlines, meaning that no brainwaves are visible on an electric monitor, within 2 to 20 seconds.
“Technically speaking, that’s how you get the time of death — it’s all based on the moment when the heart stops,” NYU’s Dr. Sam Parnia told.
It takes upto 20 seconds before the brain waves are no longer detectable. If the doctor manages to restart the heart, which is attempted by the CPR, the person will gradually start to get the brain functioning again. The longer you’re doing the CPR, those brain cell death pathways are still happening, they’re just happening at a slower rate.
In cases of cardiac arrest, doctors usually are not able to restore blood flow to the brain. That’s why the experiences of people who are successfully resuscitated are so fascinating.
“We’re trying to understand the exact features that people experience when they go through death, because we understand that this is going to reflect the universal experience we’re all going to have when we die,” Parnia added.