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.
An environmental engineer is someone who uses the principles of engineering, soil science, biology, and chemistry to develop solutions to environmental problems. They are involved in efforts to improve recycling, waste disposal, public health, and control of water and air pollution.