The Scientific Reason Why Your Friends Can Affect Your Mood

Choose your friends wisely; they could determine everything from your health to your emotions, according to a growing body of research.

friendsJacob Lund/ShutterstockDid you catchย yourself smiling for no reason today? Thank your friends. Did you come home feeling bummed out? You can thank your friends for that, too. Confused? Don’t be. A recent studyย published in the journal Royal Society Open Science reveals that your mood is about as good as the company you keepโ€”literally.

Thanks to previous research, it’s no secret by now that friends can be ridiculously healthy for us. But while otherย studies have examined friendships at justย one specific point in time, this one measured fluctuations in moodย overย a period of one year.ย Usingย a survey ofย 2,194 junior-high and high school students, researchers employedย a mathematical model to gauge the connection between individuals’ emotions and those of their friends’.

Studentsย whose friends reported being in aย bad moodย were more likely to feel down, too, the researchers found. Plus, their emotionsย were less likely to have improved when the researchers checked in betweenย six months to a year later. On the flip side, those who were surrounded by happy friends were more likely to report a mood boostย acrossย time.ย Some symptoms ofย depression, including helplessness, tiredness and loss of interest, behaved similarlyย among the students. Scientists call this phenomenon โ€œsocial contagion.โ€

So, whatโ€™s the deal? According to lead author Robert Eyre, a doctoral student at the University of Warwickโ€™s Center for Complexity Science, itโ€™s simply a โ€œnormal empathetic response that weโ€™re all familiar with, and something we recognize by common sense.โ€ In other words, our friendsโ€™ emotions tend to rub off on usโ€”the negative ones included. (Rise above the negativity with these quotes about toxic people that will help you move on.)

Of course, empathy calls for us to feel a friend’sย pain when they’reย down in the dumps. But whileย you should keep an eye out for the signs youโ€™re in a toxic friendship, you arenโ€™t in any danger of becoming depressed yourself, researchers say. Observing how bad moods expandย across friend groups can even yield important conclusions about our health.

โ€œThe good news from our work is that following the evidence-based advice for improving moodโ€”like exercise, sleeping well and managing stressโ€”can help your friends too,โ€ Eyre said.

Feeling inspired to be a better friend? Here are 24 little things you can do, starting today.

[Source: TIME]