You can actually catch a good mood or a bad mood from your friends, according to a recent study in the journal Royal Society Open Science. But that shouldn’t stop you from hanging out with pals who are down in the dumps, say the study authors: Thankfully, the effect isn’t large enough to push you into depression.
The new study adds to a growing body of research suggesting that happiness and sadness—as well as lifestyle and behavioral factors like smoking, drinking, obesity, fitness habits and even the ability to concentrate—can spread across social networks, both online and in real life. But while many previous studies have only looked at friendship data at one point in time, this is one of the few that measured social and mood changes over time.
This method was able to show how friends actually influenced each other, and helped rule out the possibility that similarities…
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