{"id":1422,"date":"2025-08-28T15:41:36","date_gmt":"2025-08-28T13:41:36","guid":{"rendered":"https:\/\/brainhelpdesk.nl\/en\/?post_type=vraag&p=1422"},"modified":"2025-10-16T16:28:05","modified_gmt":"2025-10-16T14:28:05","slug":"how-does-personality-arise-and-does-it-change-over-the-course-of-your-life","status":"publish","type":"vraag","link":"https:\/\/brainhelpdesk.nl\/en\/vraag\/how-does-personality-arise-and-does-it-change-over-the-course-of-your-life\/","title":{"rendered":"How does personality arise? And does it change over the course of your life?"},"content":{"rendered":"\n

Personality is what makes you you<\/em>: a relatively stable pattern of thinking, feeling, and behaving. Are you the life of the party or a quiet thinker? Super organized or a free spirit? Personality is often described using the \u2018Big Five\u2019 personality traits:
\u2022 Extraversion: for example, how warm, sociable, dominant, or cheerful someone is
\u2022 Neuroticism: emotional (in)stability when facing challenges or stress
\u2022 Openness: the extent to which someone seeks out new creative, adventurous, or intellectual experiences
\u2022 Conscientiousness: the degree of goal-oriented and efficient behavior, such as planning and working with attention to detail
\u2022 Agreeableness: how well someone gets along with others; being warm, empathetic, or trustworthy<\/p>\n\n\n\n

In coaching and team development, the DISC model is often used to describe personality: red for Dominance (D), yellow for Influence (I), green for Stability (S), and blue for Conscientiousness (C). This method can help people gain insight into their behavior, but caution is advised when using such personality tests in recruitment processes. That\u2019s because there is no research showing that these tests can reliably predict how well someone will perform in a job.<\/p>\n\n\n\n

When does personality arise?<\/h2>\n\n\n\n

Personality differences are present from a very young age\u2014even before birth. For example, you can already measure how well unborn babies, at 30 weeks, are able to ignore irrelevant sounds (a process called habituation). Babies who learn this more quickly tend to have a higher IQ later in life. Research also shows that people are consistent in how fast they habituate; a child who habituates quickly will still do so faster than others a year later. Other early-recognizable differences in personality traits include temperament (how often does a baby cry and how easily can they be soothed?) and how physically active a child is.<\/p>\n\n\n

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What determines your personality?<\/h2>\n\n\n\n

Like almost everything about our inner and outer selves, personality is shaped by genetic influences, environmental factors, and chance. If you don\u2019t believe in chance, you can think of it as \u201ceverything we don\u2019t yet understand.\u201d<\/p>\n\n\n\n

Research shows that about 50% of our personality is determined by our genes\u2014that is, our DNA. We know this thanks to twin studies. In these studies, researchers compare identical twins (who share exactly the same DNA) with fraternal twins (who are genetically as similar as regular siblings). What they find is that identical twins tend to resemble each other much more in personality than fraternal twins. Based on these differences, researchers have been able to estimate how much influence genes have on personality.<\/p>\n\n\n\n

The remaining 50% is shaped by environmental factors and chance. \u201cEnvironmental factors\u201d is a broad term. It includes things like the conditions in the womb (think hormones), upbringing, education, cultural influences, and all the experiences you have throughout your life.<\/p>\n\n\n\n

How stable is someone\u2019s personality?<\/h2>\n\n\n\n

Although personality is relatively stable (by definition), the degree of stability varies across age groups. Research shows that when the same people fill out personality questionnaires multiple times, the most change occurs at a young age. The older people get, the more they tend to stay the same. People\u2019s personality is most stable around the age of 60, after which it begins to change again. However, studies also show that personality is never 100% stable. In other words, your personality can continue to change throughout your entire life.<\/p>\n\n\n\n

How does personality change over a lifetime?<\/h2>\n\n\n\n

When we compare age groups, we see a few general trends in personality\u2014some of which you might expect. For example, during the teenage years, people tend to become less conscientious, less extraverted, and less agreeable on average. Later, in young adulthood, this tends to balance out, and people become more emotionally stable, more conscientious, and more agreeable. Although there is less research on how personality develops in middle-aged and older adults, some studies have found that in very old age (80+), people tend to become less emotionally stable, less extraverted, less conscientious, and less agreeable.<\/p>\n\n\n

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As I mentioned earlier: what you experience in life leaves its mark on your personality. Although research on this topic isn\u2019t always conclusive, scientists largely agree on the impact of two specific life events: (1) your first romantic relationship and (2) the transition from school to the \u201creal world.\u201d That first relationship often leads to greater emotional stability and increased extraversion. The transition from school to study or work is commonly associated with increased agreeableness, conscientiousness, and openness, and decreased neuroticism. Research into other major life events (such as having a child, getting married, or retiring) is less clear-cut. While these experiences can have a significant impact on personality for some people, they don\u2019t affect everyone in the same way.<\/p>\n\n\n\n

For fun: personality in animals?<\/h2>\n\n\n\n

As almost anyone with pets will confirm, both humans and animals have personality. What you probably didn\u2019t know is that even individual fruit flies show stable traits that could be considered personality! For instance, some fruit flies are more active than others, prefer light or avoid it. And just like with human babies, habituation (getting used to stimuli) happens faster in some fruit flies than in others\u2014and they behave in the same way when tested again later in life. So yes, even fruit flies have a relatively stable personality!<\/p>\n\n\n\n

Read more?<\/strong><\/h2>\n\n\n\n

About habituation in unborn babies and the link to IQ: Genetics, molecular control and clinical relevance of habituation learning – ScienceDirect<\/a> <\/p>\n\n\n\n

About twin studies on personality: Twin Studies in Personality Research – The Wiley Encyclopedia of Personality and Individual Differences – Wiley Online Library<\/a><\/p>\n\n\n\n

An extensive report on the different researches on how personality develops: Personality Trait Stability and Change – Wiebke Bleidorn, Christopher J. Hopwood, Mitja D. Back, Jaap J. A. Denissen, Marie Hennecke, Patrick L. Hill, Markus Jokela, Christian Kandler, Richard E. Lucas, Maike Luhmann, Ulrich Orth, Brent W. Roberts, Jenny Wagner, Cornelia Wrzus, Johannes Zimmermann, 2021<\/a> <\/p>\n\n\n\n

Source of images: www.FreeSVG.org<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Personality is what makes you you: a relatively stable pattern of thinking, feeling, and behaving. Are you the life of the party or a quiet thinker? Super organized or a free spirit? Personality is often described using the \u2018Big Five\u2019 … Lees verder…<\/span><\/em><\/a><\/em><\/p>\n","protected":false},"author":8,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[44],"class_list":["post-1422","vraag","type-vraag","status-publish","hentry","category-personality"],"acf":[],"_links":{"self":[{"href":"https:\/\/brainhelpdesk.nl\/en\/wp-json\/wp\/v2\/vraag\/1422","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/brainhelpdesk.nl\/en\/wp-json\/wp\/v2\/vraag"}],"about":[{"href":"https:\/\/brainhelpdesk.nl\/en\/wp-json\/wp\/v2\/types\/vraag"}],"author":[{"embeddable":true,"href":"https:\/\/brainhelpdesk.nl\/en\/wp-json\/wp\/v2\/users\/8"}],"version-history":[{"count":13,"href":"https:\/\/brainhelpdesk.nl\/en\/wp-json\/wp\/v2\/vraag\/1422\/revisions"}],"predecessor-version":[{"id":1609,"href":"https:\/\/brainhelpdesk.nl\/en\/wp-json\/wp\/v2\/vraag\/1422\/revisions\/1609"}],"wp:attachment":[{"href":"https:\/\/brainhelpdesk.nl\/en\/wp-json\/wp\/v2\/media?parent=1422"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/brainhelpdesk.nl\/en\/wp-json\/wp\/v2\/categories?post=1422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}