Definition: The body is our physical self including all of the systems you learned about in school. It also includes the inputs and outputs of the those systems that generates their purpose. This includes our food and nutrients that give energy and building material, as well as the energy that these systems generate that maintain and alter other systems and our environment.  Many people like to think our our electromagnetic energy field as a spiritual thing, but here at IATAI, we believe if you can see it and measure it... it is physical.