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The Life Extension And Prolongation program[1], otherwise known as the LEAP-X program, was an experimental program developed by the United States Armed Forces.


Developed as late as the mid-2070s, the LEAP-X program was a feat of biomechanical engineering that could preserve organic tissue and keep a human subject alive indefinitely.[2] The original concept involved the creation of a living bio-suit that preserved the entire body, but all the prototypes required so much power and specialized components that no more than 15 pounds of organic matter could be preserved; more specifically, this meant only the head of a person could be preserved.[3]


To date, there has only been one known participant in the program: CEO of the Nuka-Cola Corporation, John-Caleb Bradberton, who was let into the program as part of Project Cobalt.[2]


LEAP-X program is mentioned only in the Fallout 4 add-on Nuka-World.


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