At the most fundamental level the only reason we have a brain is because we move. To develop the ability to feel and think actually requires movement as a first step. Sea squirts illustrate this well. Sea squirt larvae have a very rudimentary brain and nervous system. However, they have no mouth or way to feed. The larvae are able to move to the sea floor where they cement themselves head first and this is where they will stay. As the sea squirt will never move from that spot it no longer needs its brain and nervous system so it starts absorbing it. This absorption gives the larvae enough nutrients to be able to build the circulatory, digestive and reproductive systems necessary to sustain its existence.It is because we move that we develop a brain that, eventually, is able to perform very complex tasks. It is the primitive reflex programme that provides the initial stimulus to develop the movement patterns that ultimately become our ability to move with coordination, ease and grace ag
