Growing up with sisters is probably one of the greatest parts of life. You have these built-in friends to play with and talk to, and if you're the oldest, boss around. Just kidding. (Kind of.) You've always known your sisters were some of your favorite people in your life, but what you may not know is that studies have actually proven that having sisters makes you a happier, kinder, and better person.

1. You have someone to talk to about anything and everything.

Whenever something happens, the first thing you think is, "I have to tell my sisters about this." Even if it would be TMI for someone else, you tell your sisters every detail. You know you can count on them to keep your secrets, listen to your stories, and care about what you're saying just as much as you do.

It turns out these "sisterly chats" actually make you a happier person. Whether it's something personal or just insignificant details about your day, this constant communication between sisters provides connectedness and comfort that improves your overall outlook on life.

2. You have someone to help you with your problems.

Because you know you can talk to your sisters about everything, you totally trust them with all your life problems. No matter how annoying you can be or how trivial your problems, your sisters always listen and try to help you through them.

This sisterly advice not only helps you through your situational problems, but it also makes you more emotionally secure in the long run. Because sisters are more open to these personal conversations than brothers are, just having sisters makes you less susceptible to negative feelings like fear, insecurity, feeling unloved, and loneliness.

3. There's always someone on your side.

If you have sisters, it's hard to feel alone. Your sisters are your biggest fans, and in every problem you have, they always take your side. Life is too hard to do alone, so it's a good thing your sisters have your back no matter what.

Sisters are like cohesion forces in families. According to this study, because sisters encourage emotional expression within the family, their families are closer and stronger than they would be otherwise. The inevitable closeness that comes with having sisters means you never have to face the world alone.

So, having sisters is not only tons of fun, but it's also good for your mental and emotional health. They know all your secrets and weird quirks, and they're still going to love you no matter what. Even though you fight sometimes or get on each other's nerves, you know your sisters will be there for you when no one else will, and that's why having sisters is the best thing in the world.