According to a 1991 Gallup Poll estimate, 13 million Americans, 5% of the population, have reported that they have had a near-death experience. Research has demonstrated that near-death experiences are no more likely to affect the devoutly religious than the agnostic or atheist. Near-death experiences can be experienced by anyone. According to Talbot, near-death experiences appear to have no relationship to "a person's age, sex, marital status, race, religion and/or spiritual beliefs, social class, educational level, income, frequency of church attendance, size of home community, or area of residence."
Near-death experiencer consistently report similar experiences. Although most near-death experiencers may not experience all of the traits associated with near-death experiences or in the same order, experiencers consistently report similar experiences. The following is a constructed description of the content of a near-death experience representing most of the major traits:
At the onset of the near-death experience, the individual may experience a sense of being dead, and surprise at being dead, yet will remain peaceful and have no feelings of pain. Following the peaceful awareness of being dead, the experiencer may have an out-of-body experience, a perception of separating from the physical body and moving away from the deceased body. The individual may experience a sense of moving through a tunnel, during the stage of entering into the darkness. As the individual passes through the tunnel, there may be an awareness of a bright light towards the end of the tunnel. While experiencing the consciousness of the light, ethereal forms recognizable by the experiencer may be seen in the light. In the later part of the near-death experience, the individual may sense that she or he is rising rapidly towards the light into what she or he may consider heaven or another plane of consciousness. During this ascension, the experiencer may encounter a Being of Light reported to be either God, another spiritual deity, or an energy form recognized by non-theists. The encounter with the Being of Light engulfs the experiencer with a sense of unconditional love that emanates from the Being. During this encounter, the near-death experiencer may become conscious of having a total panoramic review of her or his life and may experience a sense of self-judgment when observing her or his life events in review. The judgment is not by the Being of Light but is a personal judgment by the experiencer. Throughout each of the stages, and particularly in the latter stages of the near-death experience, the individual may be reluctant to return to her or his former life.
Although most near-death reports are positive, in that they are pleasurable experiences, there are some reports of negative or "hellish" type experiences. The reports of negative near-death experiences appear to be rare. Of all the reported near-death experiences, a 1982 Gallup poll estimated that less than 1% are considered to be negative, hellish, and frightening experiences. The negative near-death experiences are reported to contain similar traits as positive experiences but are associated with a sense of extreme fear, panic or anger, a sense of helplessness, and possible visions of demonic creatures.
Many individuals who have experienced a near-death experience claim a fuller understanding of their religious or spiritual insights and their impact on their lives. They report that they feel closer to God after their near-death experience. The effect of this spiritual awakening on the experiencer is a more positive attitude towards life, a lack of fear of dying, and a sense of service towards others.