Having a lot of Facebook friends may be more than a sign of your online social popularity: A new study suggests it could also be telling of the size of certain brain regions, as well as the number of real-life friends that you have.
Having a lot of Facebook friends may be more than a sign of your online social popularity: A new study suggests it could also be telling of the size of certain brain regions, as well as the number of real-life friends that you have.