 [ Symptoms ] icthy and rashes problem wid my penis and anus  i hv rashes due to too much itching on sides ov my penis and anus and on legs inner side near to penis and testicals now tell me wt to do [ Disease ] what sodium does is it causes neurons to fire or to send signals this is essential to brain activity and muscle response including the heart i am unsure as to how long the body can survive without sodium but he is likely having low neuron activity thus possibly leading into something of a coma note i am a high school student with no research done on this sort of topic and biology 30 as my latest information so i could be wrong