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.
1. 'engineer'. An engineer is a skilled person who uses scientific knowledge to design and construct machinery, electrical devices, or roads and bridges. He trained as a civil engineer and worked on the M4 motorway. ...a brilliant young mining engineer. An engineer is also a person who repairs mechanical or electrical devices. The telephone engineer can't come until Wednesday. In American English, a person who drives a train is also called an engineer. An engineer pulled his freight train into a siding.