Being introverted has nothing to do with liking alone time. It turns out that the desire for solitude comes from a different trait altogether: independence.

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What makes introverts different is our sensitivity to stimulation: We’re more easily overloaded than extroverts. When introverts spend a whole week acting like extroverts, there is evidence that the emotional benefits fade and costs begin to emerge—introverts start to feel more negative emotions, more exhaustion and less authenticity.

Adam Grant, “Yes, Even Introverts Can Be Lonely Right Now”