Recently, my friend Gina introduced me to a wonderful, documentary video by Brent Hoff. It profiles several people who are participaing in an impromptu love "competition." While being scanned by an fMRI machine at Stanford, each participant was asked to think about love, then researchers examined the results to determine who had the highest level of neural activity in brain regions associated with love. Who won? The woman in a new relationship? The old married man? The young boy? Watch the video and see. It's quite well done, and inspiring.