During all the years of Imodium/opiate usage, her liver became severely compromised and she developed Breast Cancer (cancer virtually never develops in a person with a healthy liver). She beat a small breast tumor once with hyperbaric oxygen, but it returned (because no one addressed her constipated bowels/liver).
-- Wikipedia. Reverse engineering, also called back engineering, is the processes of extracting knowledge or design information from anything man-made and re-producing it or re-producing anything based on the extracted information.
Industrial engineering is a branch of engineering which deals with the optimization of complex processes, systems or organizations. Industrial engineers work to eliminate waste of time, money, materials, man-hours, machine time, energy and other resources that do not generate value.