The more friends we have on Facebook, the more likely we are to be stressed about having so many friends. Sounds strange, but it’s true—at least according to a study from the University of Edinburgh Business School. Researchers there say most Facebook users have seven different social circles (friends, family, work colleagues, etc.), all of which might never intersect in real life but rub elbows on Facebook. Most of us don’t act with each of those groups in exactly the same way: What one group might find funny another might find offensive. So those with lots of Facebook friends can become worried about making an online faux pas. “Facebook wants us to—and, really, forces us to—conduct our digital lives with singular identities: identities that can be harnessed and streamlined (and sold to and analyzed),” writes Megan Garber of The Atlantic. “We, however—we as people, we as cultures, we as societies—tend to expect that identities will be what they have been since the advent of society itself: prismatic, varied, contextual. These tensions inevitably will clash. They will come to terms with each other as Facebook adapts to users’ expectations and, more to the point, as users adapt to Facebook’s. In the meantime, though, users are bearing the brunt of the conflict; and that is, yes, stressful.” (The Atlantic)