According to evolutionary anthropologist Robin Dunbar, our meaningful social circle can't ever exceed between 100 and 230 people. How did Dunbar's number come about?
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Beware of the blinding effect of social connections.
Relationships can be as much of a factor in good health as cholesterol, blood pressure and BMI.
Remember the media panic from the summer of 2006 about lonely and isolated Americans? The publication of a sociological study had unleashed a cascade...
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