Reason for near-death experience
Prior to this, researchers in the study about this in the University of Kentucky in 2009, told the cause of the near-death experience that due to the 'sleep-wake' and drug intake in those patients.
Some scientists consider the reason for the patient's brain not getting enough oxygen during this time. Regardless of this, there are many questions related to this, which do not have any answer, such as when people talk about seeing things, while they are 'dead' in a way, their eyes are completely closed.
Later, his words are found to be correct. Likewise, if such experiences are due to more chemical effect, then why do people come to a drastic change in life? Many such people turn towards spirituality and their fear of death ends. Such people say that their experiences can not be explained by scientific reasoning.