Scientists reveal the secret of the "light at the end of the tunnel" at the end of life

Scientists have proposed rational explanations for the phenomenon of the "light at the end of the tunnel" experienced by people in a state of clinical death. Studies point to a surge in brain activity, the release of neurotransmitters, and gamma oscillations that can cause hallucinations and out-of-body sensations. The vision of a tunnel is linked to oxygen deprivation in the visual cortex, while the feeling of peace is attributed to the release of endorphins.

Scientists have proposed rational explanations for the phenomenon of the "light at the end of the tunnel" experienced by people in a state of clinical death. Research conducted by specialists at the University of Michigan has revealed that within the first 30 seconds after cardiac arrest, neurons begin to work at their maximum capacity. This surge in activity is associated with the release of neurotransmitters, which may explain the appearance of hallucinations, out-of-body sensations, and visions of bright light. During clinical death, a sharp surge in gamma oscillations is observed—high-frequency waves linked to conscious thought and memory. The vision of a luminous tunnel may be related to the functioning of the brain's visual cortex: when oxygen deprivation disrupts blood circulation in this area, a tunnel vision effect occurs. The state of calm and harmony is explained by the release of endorphins and serotonin. Studies of rat brains after cardiac arrest have shown that brain activity continues for several more seconds. The article is of a popular science nature and contains no signs of propaganda or commercial advertising.