Most folks today would agree that we live in troubled times. At any moment, a single event could change the balance of our society for the worse, taking us back to what some might call the dark ages. Predicted solar flares, EMPs, earthquakes, or even terrorist activity today could lead to a complete infrastructure failure that would affect every aspect of our future. During such a grim event, our personal health would be a great concern. Without refrigeration, many medicines would spoil. Without power, pharmaceutical plants shut down. The few hospitals that have back-up power will soon run out and close if they are not overrun by the masses first. Most modern medical practices would become useless. What is common surgery today, will become a thing of the past. Without the power grid, virtually all that goes into modern medical practices for the common man simply goes away.