Current developments both in the area of sensors and actuators that can be planted within the human body, along with the advancements in the areas of big data analysis, and autonomous intelligent systems serves as a major revolution the approach to healthcare. Furthermore, it has a potential to make a major revolution in life as we know it by providing the gate to singularity that brings with it eternal (or at least very long) life. This is part of a general trend of autonomous systems that brings hope for the next level in the human evolution along with paradoxes and dilemmas. The tutorial concentrates upon the description of the current development that enable event processing within the human body, the notion of body area networks in general, and applications of this area to medical and non-medical applications. Some predictions about future trends in this area, especially the vision of singularity are discussed, and some philosophical observations about the implications are also discussed in detail.