Why do we become excited when we watch sports? Why do we cry at sad movies? The answer may be mirror neurons. These fascinating cells have been shown to be active while we are performing an action or while we are simply seeing the same action performed by someone else. They are literally mirroring the activity that we are seeing so much so that our brain cannot distinguish between what we are seeing and what we are doing. This results in a physiological response as if we were actually performing an action. Watch
this NOVA video that Roxi found for a more detailed description of this amazing part of the brain.
