Send to a Friend

Is this an ad for Facebook or (EDIT:actual) news? "More friends on facebook equals bigger Amygdala in your brain"?
It is on the news today (January 5/2010) Look below for the link.
http://digg.com/news/technology/study_more_friends_on_facebook_equals_a_bigger_amygdala_in_your_brain
Using Fluther
or