A Shaw Nigel, The Role of Cerebral Hypercarbia in the Induction of the Near-Death Experience, Journal of Nervous System and Physiological Phenomena, Volume 1, Issue 1, 2024, Pages 1-32, ISSN Coming Soon, https://doi.org/. (https://jphi-healthcarejournals.netjnpp/article/2175) Keywords: Carbogen therapy; Central chemoreceptors; Cerebral hypercarbia; Classical hallucinogens; 5-HT2A sub receptors; Near-death experience; Serotonergic pathways