Here is a great study. Maybe Qi/Chi is just light energy, maybe not but its still cool. Here's a little quote from the article and the link to it below.
"The human body literally glows, emitting a visible light in extremely small quantities at levels that rise and fall with the day, scientists now reveal."
http://www.livescience.com/7799-stra...ble-light.html
And a little something for the wonderful kooks who entertain us so. If we glow then does that mean we were actually engineered by the Annunaki as the Sumerians described? Supposedly the Annunaki (angles) glowed in the dark so if we have some of their genetics then maybe we still retain a bit of that glow.
Don't work me over to badly for that last bit. I'm just offering a little something for the conspiracy folks. :D