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Why Introverts Are Introverts? Because Their Brains Are Different

Why Introverts Are Introverts? Because Their Brains Are Different

You prefer to curl up and read a book by yourself over going to a flashy social event. You like the company of one close friend rather than a group of many rowdy people. Once more you prefer to stay on the safe side than take risks. Does this sound familiar? If so, then you are probably an introvert. You may already know this but what you may not be aware of is that there are physical differences in your brain that make you prefer quiet activities over those that are highly energized.

Carl Jung’s studies

It was Carl Jung who in the 1920s coined the terms introvert and extrovert. He did so to describe contrasting personality types and to explain why different people were energized in distinct ways. He hypothesized that extroverts gained their energy from their social interactions and eternal environments and tended to feel uncomfortable and anxious when they found themselves alone.

Introverts, on the other hand, Jung explained, are able to replenish their energy levels when they are in quiet environments. Unlike extroverts they find socializing and busy environments overstimulating and too demanding.

Dr. Laney clarifies in her book, The Hidden Gifts of the Introverted Child that “introversion and extroversion are not black and white. No one is completely one way or another – we all must function at times on either  side of the continuum”.

Introversion and extroversion are at the opposite ends of the same spectrum. Everybody moves up and down the spectrum depending on external and internal factors, however, a person tends to prefer one personality type over the other.

The Dopamine difference

A major difference between the brains of introverts and extroverts is the way they react to the neurotransmitter dopamine.

Dopamine is a chemical that is released in the brain. It gives a person their motivation to achieve external goals and receive external rewards. For example, dopamine may motivate an individual to earn more money, increase their circle of friends, attract a good looking partner or advance to a higher role at work. When dopamine is released all of us become more alert to our surroundings, more talkative and more motivated to undertake activities that may be perceived as risky.

Introverts and extroverts have equal amounts of dopamine in their brains, however, the difference between these two categories of people is the activity of the dopamine reward network. The dopamine reward network is more active and dynamic in the brains of extroverts as Scott Barry Kaufman, the Scientific Director of The Imagination Institute says. When an extrovert anticipates a social event, for example, they feel good and energized, whereas the introvert will feel overstimulated.

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Acetylcholine and Introverts

Christine Fonseca writes in her book Quiet Kids: Help your introverted child succeed in an extroverted world that introverts prefer to rely on a different neurotransmitter called acetylcholine.

Acetylcholine is related to pleasure, just like dopamine, however acetylcholine makes a person feel good when they turn inward. It gives a person the skill to reflect and focus solely on an individual task for an extended period of time. As it is simpler to turn inwards when there is limited external stimulation, introverts opt for a calm environment.

Introverts prefer one side of the nervous system over the other

The nervous system is divided into two distinct parts: there is the sympathetic side which is related to the “fight, fright, or flight” response; and the parasympathetic side. The parasympathetic side allows us to rest and digest.

When the sympathetic side is stimulated the body prepares for action; adrenaline is released, glucose energizes the muscles and the amount of oxygen in the body increases. The thinking mechanisms in the brain are put on hold. Dopamine increases alertness in the rear of the brain.

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When the parasympathetic side of the brain is in gear; muscles relax, energy is stored and food is metabolized. Blood flow and alertness in the front of the brain increase as acetylcholine is released.

Although extroverts and introverts use both sides of the nervous system, various times introverts tend to prefer to use the parasympathetic side. This allows introverts to be calm and to act in a slow and measured way.

Why introverts tend to overthink

When information from the external world is received by an extroverts brain it travels via a short pathway that goes through the areas of the brain where touch, taste, sound and sight are processed.

When introverts receive stimulus from the outside world the pathway that the information travels through is a lot longer. The information goes through many areas of the brain including:

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  1. The right front insular,
  2. Broca’s area,
  3. The right and left front lobes and,
  4. The left hippocampus.

The right front insular is an area involved with empathy, emotional thought and self-reflection. The Broca’s area activates self-talk and plans speech. The right and left front lobs, plan and select ideas and actions. The left hippocampus decides what things are personal and places them in long-term memories.

The long journey that the information takes when an introvert receives stimulus from the external world is the reason that introverts take longer to speak, react and make decisions.

Introverts have more gray matter in the front of their brains

study published in the Journal of Neuroscience discovered that introverts have larger, thicker gray matter in their prefrontal cortex. The prefrontal cortex is the place in the brain that is linked to abstract thought and decision-making. Extroverts, on the other hand, have thinner gram matter in the same area.

What does this mean? It means that introverts devote more of their energy and resources to abstract thought while extroverts have the propensity to live in the moment.

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Summation

Things may now make more sense to you, as an introvert. You can now understand that there are physical differences in your brain that make you prefer peaceful activities and self-reflection over highly energized situations.

Featured photo credit: Introvert Dear via introvertdear.com

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Rebecca Beris

Rebecca is a wellness and lifestyle writer at Lifehack.

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Last Updated on June 19, 2019

6 Ways to Be a Successful Risk Taker and Take More Chances

6 Ways to Be a Successful Risk Taker and Take More Chances

I’ve stood on the edge of my own personal cliffs many times. Each time I jumped, something different happened. There were risks that started off great, but eventually faded. There were risks that left me falling until I hit the ground. There were risks that started slow, but built into massive successes.

Every risk is different, but every risk is the same. You need to have some fundamentals ready before you jump, but not too many.

It wouldn’t be a risk if you knew everything that was about to happen, would it? Here’re 6 ways to be a successful risk taker.

1. Understand That Failure Is Going to Happen a Lot

It’s part of life. Everything we do has failure attached to it. All successful people have stories of massive failure attached to them. Thinking that your risk is going to be pain free and run as smooth as silk is insane.

Expect some pain and failure. Actually, expect a lot of it. Expect the sleepless nights with crazy thoughts of insecurity that leave you trembling under the covers. It’s going to happen, no matter how positive you are about the risk you are about to take.

When failure hits, the only options are to keep going or quit. If you expect falling into a meadow of flowers and frolicking unicorns, then you’re going to immediately quit once you realize that getting to that meadow requires you to go through a rock filled cave filled with hungry bats.

2. Trust the Muse

Writing a story isn’t a big risk. It’s really just a risk on my time. So when I start writing a story, I’m scared it will be time wasted. Of course, it never really is. Even if the story doesn’t turn out fabulous, I still practiced.

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When I’ve taken risks in my life, the successful ones always seemed to happen when I followed the muse. Steven Pressfield describes the muse,

“The Muse demands depth. Shallow does not work for her. If we’re seeking her help, we can’t stay in the kiddie end. When we work, we have to go hard and go deep.”

The muse is a goddess who wants our attention and wants us to work on our passion.

If you’re taking a risk in anything, it’s assumed that there is some passion built up behind that risk. That passion, deep inside you, is the muse. Trust it, focus on it, listen to it.

The most successful articles and stories I write are the ones I’ve focused all my attention on. There were no interruptions during their creative development. I didn’t check my phone or go watch my Twitter feed. I was fully engaged in my work.

Trust the muse, focus your attention on your risk, let the ideas and path develop themselves, and leave the distractions at the side of the road.

3. Remember to Be Authentic

Taking a risk and then turning into something you’re not, is only going to lead to disaster. Whether you are risking a new relationship or new opportunity, you must be yourself throughout the entire process.

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How many times have you acted like you loved something just because the men or woman you just started going out with loved it?

For example, I’m not an office worker. I have an incredibly hard time working in a confined timeline (ie. 9-5). That’s why I write. I can do it whenever the mood strikes, I don’t have somebody breathing down my neck, telling me that I’m five minutes late, or missed a comma somewhere. I don’t have to walk on eggshells wondering if what I’m writing will get me fired or make me lose a promotion. I can just be myself, period.

One girlfriend didn’t understand that. She believed solely in the 9-5 motto, specifically something in human resources because that was a very stable job. I was scared for my future, but I stuck with the relationship because of my own insecurities and acted like I would do it to make her happy.

Here’s a tip: NEVER take away from your happiness to make somebody else satisfied (note I didn’t say happy).

Making somebody else happy will make you happy. Doing something to satisfy somebody is murder on your soul.

4. Don’t Take Any Risks While You’re Not Clearheaded

I’d been considering the risk for a couple weeks. It all sounded good. I was 22 and I could be rich in a couple of years. That’s what they were selling me, anyways.

One night, while at a house party with some friends, I found myself at a computer. A couple of my friends were standing nearby and asked me what I was doing. I told them I was considering starting my own business and it was only going to cost me $1,500.

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Of course, when a bunch of drunk people are surrounded by more drunk people, things get enthusiastic. It sounded like the best business venture in the world to everybody, including me. So I signed up and gave them my credit card number.

A few painful months and close to $4,000 dollars lost later, I quit the business. I was young and fell into the pyramid scheme trap. It was an expensive drunk decision.

Drinking heavily and making decisions has a proven track record of failure. So when you have something important to decide, don’t let your emotions take over your brain.

5. Fully Understand What You’re Risking

It was the start of my baseball comeback. I got a tryout with a professional scout and killed it. After the tryout, he talked to my girlfriend and myself, making sure we understood I would be gone for up to 6 months at a time. That strain on the relationship could be tough.

We understood. I left to play ball, chose to stay in the city I played in, and a year later we broke up. Not because of baseball, see point 3 above. Taking big risks can have massive impacts on everything in your life from relationships to money. Know what you’re risking before you take the risk.

If you believe the risk will be worth it or you have the support you need from your family, then go ahead and make the leap.

You can get more guidance on how to take calculated risks from this article: How to Take Calculated Risk to Achieve More and Become Successful

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6. Remember This Is Your One Shot Only

As far as we know officially, this is our one shot at life, so why not take some risks?

The top thing people are saddened by on their deathbeds are these regrets. They wish they did more, asked that girl in the coffee shop out, spoke out when they should have, or did what they were passionate about.

Don’t regret. Learn and experience. Live. Take the risks you believe in. Be yourself and make the world a better place.

Now go ahead, take that risk and be successful at it!

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Featured photo credit: Unsplash via unsplash.com

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