Introduction:

An introvert is a person with qualities of a personality type known as introversion, which means that they feel more comfortable focusing on their inner thoughts and ideas, rather than what’s happening externally. They enjoy spending time with just one or two people, rather than large groups or crowds. When you hear the word introvert, you might think of someone who's shy or quiet and prefers to be alone. While that may be true for some introverts, there's much more to this personality type. Whether you're an introvert or an extrovert all depends on how you process the world around you. A psychologist named Carl Jung began using the terms introvert and extrovert (sometimes spelled extravert) in the 1920s. These two personality types sort people into how they get or spend their energy. Introverts, Jung said, turn to their own minds to recharge, while extroverts seek out other people for their energy needs.

Signs You are an Introvert:

• Need quiet to concentrate
• Are reflective
• Are self-aware
• Take time making decisions
• Feel comfortable being alone
• Don't like group work
• Prefer to write rather than talk
• Feel tired after being in a crowd
• Have few friendships, but are very close with these friends
• Daydream or use their imaginations to work out a problem
• Retreat into their own mind to rest

Causes:

Scientists don't know for sure if there's a cause for introversion or extroversion. What they do know is the brains of the two personality types work a little differently from each other. Researchers have found that introverts have a higher blood flow to their frontal lobe than extroverts do. This part of the brain helps you remember things, solve problems, and plan ahead. Introvert brains also react differently to dopamine than extrovert brains do. That's a chemical that turns on the reward- and pleasure-seeking part of your brain. Introverts and extroverts have the same amount of the chemical, but extrovert brains get an excited buzz from their reward center. Introverts, on the other hand, tend to just feel run-down by it.

Types of Introverts:

Social Introverts:

This is the "classic" type of introvert. Social introverts like small groups and quiet settings over crowds.

Thinking Introverts:

People in this group are daydreamers. They spend a lot of time in their thoughts and tend to have creative imaginations.

Anxious Introverts:

They seek out alone time not just because they like it, but also because they often feel awkward or shy around people.