The existence of an afterlife is a mystery that has plagued religion, philosophy and psychology since their conception - until now. For seven years, Gary Schwartz, a UA professor and director of the Center for Frontier Medicine in Biofield Science, has been conducting afterlife experiments and research that he believes prove the survival of human consciousness after death. "When you look at the totality of the data, the simplest and most parsimonious explanation that accounts for the largest amount of data is the survival of consciousness hypothesis," he said. The experiments are performed in a lab with a medium, a sitter and Schwartz. A medium is someone who believes that he or she can communicate with the dead, and a sitter is a person who wishes to gain knowledge about a deceased loved one. The medium receives messages from the dead and then relays them to the sitter, who tells Schwartz if the information is correct or incorrect. These messages can include the deceased's cause of death, memories that include the deceased and the sitter and "signs" for the sitter that indicate the deceased is around him or her. After the experiment, Schwartz analyzes the data and determines the accuracy of the medium's reading.