Researchers have discovered that the rhythm of our breathing creates electrical activity in the human brain, and the effect is slightly different depending on if we use our mouth or nose to breathe, and if we're inhaling or exhaling. "One of the major findings in this study is that there is a dramatic difference in brain activity in the amygdala and hippocampus during inhalation compared with exhalation," says neurologist Christina Zelano. "When you breathe in, we discovered you are stimulating neurons in the olfactory cortex, amygdala, and hippocampus, all across the limbic system[FONT=Open Sans, Helvetica, Arial, sans-serif]."[/FONT] I'd like to see them take this a bit further and see how breathing affects consciousness - especially at the point where you are in between the in breath and the out breath. What do you think?