Some studies show that over 60% of people in the US right now report feeling lonely on a pretty regular basis.

This number – the maximum social group size for a given species, based on pre-frontal cortex size – became known as the Dunbar Number. Hence the limit on the size of an infantry company ...

Dunbar did a study of human interaction on Facebook and found that number to be much lower. We only have 4 real friends, and 14 that care at all. Follow BI Video: On Twitter More from News In the ...

Recently, Dunbar did a study of human interaction on Facebook and found that number to be much lower. We only have 4 real friends, and 14 that care at all. Produced by Joe Avella Follow BI Video ...