Scientists explain shocking reality of what your brain sees right before death

He said he first found himself in his great-grandfather’s house in Ireland, where he saw his late grandparents. They told him he didn’t belong there. Moments later, he appeared at his in-laws’ home in New York, where his deceased mother-in-law told him, “You’re supposed to be with your wife and boys—please go home.”

Tom recalled meeting other deceased relatives who shared the same message. He also heard voices of loved ones visiting him in the hospital. “It was like being in a submarine, steering by sound,” he explained. “Their voices helped me build a world in my coma.”

When he woke, Tom remembered his coma experiences as if they were vivid dreams spanning time and space. Dr. Charlotte Martial of the University of Liège’s Coma Science Group studied his case and noted that most NDEs are not so peaceful.

She explained that a lack of oxygen triggers the release of chemicals like serotonin, dopamine, and endorphins, which can create visions and calmness—a possible defense mechanism during trauma.

Tom’s story continues to intrigue scientists and believers alike, offering a glimpse into what the mind might experience at the edge of life.