feel the burn - studying and calories

[Jocele Pao-yu Wang]

Hi everyone -
	How much energy does hard concentration take up?  I know I'm
always very tired after intense studying, even though I've just been
sitting still and not moving.  I've heard that studying burns as many
calories as hard exercise, and while I suspect it is a bit of an
exaggeration, there must be _some_ truth to it...
	welp, back to the books!
	
	- jocele =)