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In regards to mental health, kids who can connect with their brother and sister and go through life together are more apt to tackle some harder situations with ease than those without siblings, BBC reported.

Oh, siblings. You’ve got to love them.

But why?

Four out of every five Americans have at least one brother or sister, according to U.S. News and World Report. And according to The Huffington Posts’ Alena Hall, there are handfuls of reasons why having a sibling is so important. Mostly because it’s a bond unlike any other that we have in our lives.

“The connection is hard to describe in a single word,” Hall wrote. “It's the comfort felt when you sit in the same room with your brother and sister, in pure silence, yet you both know how the other is feeling. It's picking up right where you left off, even if it's been weeks, months or years since the last deep conversation. It's the knowledge that, at the end of the day, you'll always be able to call on that person for support.”

Here are eight reasons why having a sibling is totally cool.

It’s someone unique to hang out with

According to a Facebook survey, siblings are very likely to have the same first initial of their names. But that shouldn’t make siblings worry about being unique. NPR reported in 2010 that even though brothers and sisters share the same genes, they often have very different personalities.

A sibling makes you healthier

Yes, your sibling is actually helping you cut back on obesity and improve your mental health, according to BBC News.

Research has found that when siblings eat together, they’re often looking to eat the same amount of food — which, when young, is considerably less than a parent’s portion, BBC reported.

In regards to mental health, kids who can connect with their brother and sister and go through life together are more apt to tackle some harder situations with ease than those without siblings, BBC reported.

It could give you a higher IQ

This is especially true for the older sibling.

According to LiveScience, a study in 2007 found that older siblings usually have a higher IQ than their younger brother or sister. This is because they get the most attention in the home — being the first child — and can pick up a number of different cues from parents, the study found.

The younger sibling is also more likely to get lower grades. So, the older sibling definitely gets the advantage with this one.

You’re less likely to get divorced

Having a brother or sister could keep you away from divorce.

According to a study cited by The Columbus Dispatch, kids who have siblings have a better understanding of how to deal with people and social situations, which helps them when it comes to sustaining relationships as they get older.

So because you can handle your brother or sister, you’re more likely to understand how to best handle a marriage and avoid divorce, the study found.

You can learn from each other

It’s not all playtime for siblings, even when you're in the playground.

The Deccan Chronicle reported in July of this year that siblings can learn from each other during their playtime. Specifically, brothers and sisters learn how to count, write with chalk and to interact in very much the same way that teachers and students work together.

When playing together, siblings look to solve problems and conquer issues that arise, which leads to one sibling teaching the other something that later translates into the classroom, the Chronicle reported.

For men, it breeds success

Men with siblings can be more successful later in life. According to a study cited by Art of Manliness, a man’s information website, guys who had a good relationship with a sibling made $51,000 more than those who didn’t have good relationships.

That’s right. A good relationship with your sibling could get you an extra $50,000 in salary. Not bad.

You learn to achieve goals

According to a study in the Journal of Research in Personality, siblings have a different way of achieving goals. As Time’s Francesca Fenzi highlighted in a story about the study, older siblings are more likely to achieve goals that give their own performance a boost. On the other side of that, younger siblings are better at outperforming others.

“First-borns may be more motivated to learn, whereas second-borns may be more motivated to win,” the authors said in the study.

Life is just better with a sibling

Yep. According to a study done by Brigham Young University, life is just miles better when you have a sibling — and for multiple reasons. The study found that siblings are better at avoiding depression, and they are better at lowering “the risk for delinquency,” Deseret News reported.

"Sibling affection, regardless of gender, was a really positive thing," said Laura Padilla-Walker, one of the professors involved with the study. "We know that siblings are important in early childhood, but this finding is interesting because it shows that they still matter in adolescence."