A near-death experience (NDE) is a phenomenon that occurs when a person is close to death or clinically dead, and later reports having a conscious experience of various events, such as seeing a bright light, leaving their body, meeting deceased relatives, or having a life review. NDEs are not well understood by science, and different explanations have been proposed, such as psychological reactions to the threat of death, changes in brain activity and chemistry, or spiritual evidence of an afterlife. NDEs can have profound effects on the person who experiences them, such as losing the fear of death, becoming more compassionate and altruistic, or developing enhanced intuition and psychic abilities. NDEs are rare but not uncommon, and they have been reported by people from different cultures and backgrounds.
