This Personality Trait Boosts Happiness

Acting out this personality trait makes people feel happier.

Acting out this personality trait makes people feel happier.

Acting like an extravert makes people feel happier — even natural introverts, research finds.

Both extraverts and introverts report greater well-being after a week spent being more talkative, assertive and spontaneous.

It is the first study to report the benefits of acting like an extravert over such an extended period.

The study also demonstrates that people who are naturally introverted can enjoy this exercise as much as extraverts.

‘Faux’ extraverts (people who are really introverts) reported no problems acting as extraverts.

Professor Sonja Lyubomirsky, the study’s first author, said:

“The findings suggest that changing one’s social behavior is a realizable goal for many people, and that behaving in an extraverted way improves well-being.”

For the study, 123 people were asked to act like extraverts for one week and introverts for another week.

During the extravert week, participants were told to be talkative, assertive and spontaneous.

During the introvert week, they were told to be more deliberate, quiet and reserved.

People were informed that acting like an introvert and like an extravert is beneficial.

This was to try and dampen the effects of participants’ expectations.

The results showed that people felt better after a week acting as an extravert and worse after the week as an introvert.

The positive effect on well-being is the largest known among happiness interventions.

Surprisingly, acting like an extravert seems to cause people’s personality to shift in that direction.

Professor Lyubomirsky said:

“It showed that a manipulation to increase extraverted behavior substantially improved well-being.

Manipulating personality-relevant behavior over as long as a week may be easier than previously thought, and the effects can be surprisingly powerful.”

The study was published in the Journal of Experimental Psychology: General (Margolis & Lyubomirsky, 2019).


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This site is all about scientific research into how the mind works.

It’s mostly written by psychologist and author, Dr Jeremy Dean.

I try to dig up fascinating studies that tell us something about what it means to be human.

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Author: Jeremy Dean

Psychologist, Jeremy Dean, PhD is the founder and author of PsyBlog. He holds a doctorate in psychology from University College London and two other advanced degrees in psychology. He has been writing about scientific research on PsyBlog since 2004. He is also the author of the book "Making Habits, Breaking Habits" (Da Capo, 2013) and several ebooks.