For some strange reason I keep thinking - off and on all day - about the study I posted about yesterday. I have my own 'research' and conclusion to add. My research is not scientifically undertaken but my conclusion - after years and years of research - is that this effect goes both ways. I am absolutely certain that when I hear the voice of any one of my children my cortisol levels drop immediately and my oxytocin levels jump. I wonder if anyone will study this?