A friend of mine is a cardiologist in Denmark. He’s old, and was practicing medicine before the paddles and resuscitation techniques were developed.
In the 1990’s, many of his patients who were resuscitated told him about experiences after they left their physical bodies, while they were dead.
He began a study, interviewing a large sample of resuscitated cardiology patients and found that about 18% of them recalled such an experience.
This study was published in the medical journal Lancet in 2001.
His name is Pim van Lommel.
https://pimvanlommel.nl/wp-content/uploads/2017/11/NDE-NYAS-Experience-Self-article.pdf
Here the gist of the article:
Our study found that 282 patients (82%) had no recollection of the period of their unconsciousness, whereas 62 patients—18% of the 344 patients—reported an NDE. Of these 62 patients with memories, 21 patients (6%) had some recollection; having experienced only some elements, they had a superficial NDE with a low score. Forty-one patients (12%) reported a core experience: 18 patients had a moderately deep NDE, 17 patients reported a deep NDE, and 6 patients reported a very deep NDE.
Summa summarum: The overwhelming majority of people who undergo "clinical death" experience nothing (or at least have absolutely no recollection of any sort of NDE). And of those who do have some sort of NDE, about a third report only a "superficial" experience.
Further, other studies show that many people who are in no way near death (who are, e.g., merely unconscious for a short time or who are undergoing anaesthesia for a banal surgical operation) also report the EXACT SAME sort of experiences.
We are therefore justified in filing these NDE's together with Bigfoot sightings and the accounts of people who report having had sex with aliens.
Nothing-burger!
Regards,