An image appears on screen showing mechanical things in motion and corresponding body sites. A fraying cable used to lift a block is shown next to nerve and muscle fibers. A water hose with mineral deposits clogging it, next to a beating heart and blood vessels. Old, dirty oil draining from a machine, next to it a cell. Margo is oblivious to Kenrick - she is speaking to each of her people.
Stress hastens the dying process.
It simply means we overwork our physical bodies, either through repeated activity, lack of rest, or too much mental stimulation. The symptoms show up as physical problems that won't go away, and depression, lack of energy, and even death. Let me show you. Mark is leaning forward with great interest. On the screen the fraying cable becomes magnified and rocks back and forth over a pulley.