Just like the trees and plants our bodies respond to the position in the sky, the sun is located in. Our body gets specific instructions for specific body behaviors. When the sun changes direction it is giving instruction particularly to our endocrine system, our immune system and our nervous system. It is the sun’s position in the sky that instructs the trees to either shed their leaves or begin to bud again, as well as the direction the sun is travelling toward. If it is moving from the south to the north the sun is giving one set of instructions, and if it is moving from the north to the south the sun is giving the opposite set of instructions.