Cell signaling is a new term.  It has to do with the way your body intuitvely reacts to certain stimuli.  It's literally a way for your to communicate with yourself.

Just listen to the episonde.  I don't know how to write a description that doesn't sound new agey. 

Today's podcasts is a conversation with Rose Marie Raccioppi from www.apogeeacutone.blogspot.com 

She also runs a site called 2learnnow.com 

You have trillions of living cells inside of your body.  When there is disharmony amongst them, imbalance occurs.

When your living cells work together than you have a sense of wellness.  You are no longer surviving but thriving.

 The pleasant music in the background is by a musical genius named Kevin Macleod.  He runs a website called http://incompetech.com