Close Friends Actually Share the Same Brain Patterns, Science Says

But you knew this already, right?

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It's true: Nobody gets you quite like your . Not only do they share your passion for Netflix and videos but they're always down to talk about whatever's on your mind. And hey, they'll even share your sense of humor (well, sometimes).

A recent study published in says the reason for this likeness is that best friends actually have similar — or sometimes identical — brain activity. Yup, your closest friends "get you" because it's like their basically looking in the mirror.

The study, conducted at Dartmouth College, initially had 279 students fill out a survey about friendship. From there, they examined the brain activity of 42 students as they watched old videos. The videos included clips from America's Funniest Home Videos and CNN's Crossfire, as well as footage of an astronaut at the International Space Station and a wedding ceremony.

MRI scans found that the closer the friends — in terms of relationship, not proximity — the closer the brain activity. The same brain areas — linked to motivation, attention, and judgment — lit up in close friends. From the results, researchers were even able to predict which participants were friends — and their guesses were spot on.

“People who responded more similarly to the videos shown in the experiment were more likely to be closer to one another in their shared social network, and these effects were significant even when controlling for inter-subject similarities in demographic variables, such as age, gender, nationality, and ethnicity,” the authors wrote.

The study raises a bigger question: Do people initially seek out friends who are just like them? Or do friends become more alike over time? "We think both are happening," author Adam Kleinbaum told . But the authors aren't concerned about these tendencies. In fact, it's a good thing because having close friends with similar brain activity "may be rewarding because it reinforces one's own values, opinions, and interests."

So, what comes next? Plan a with your and see how in-sync you are. We bet you'll both be rolling on the floor with laughter or balling your eyes out because apparently, that's what do.

(h/t )

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