Humans Are Only Capable Of Having Five People In Their Closest Circle, University of Oxford Study Suggests

A trio of researchers affiliated with the University of Oxford in England and Aalto University School of Science in Finland has conducted a study of human behavior and has found evidence backing up a prior theory that suggests humans have different layers that make up their social circle with different numbers of people in them. In their paper uploaded to the preprint server, arXiv, they describe their study which involved analyzing cell phone records to count calls, what they found and that they believe it means for us a group.