How Does Personality Change As You Age?

We adapt our personalities the older we get, growing calmer and more positive after the age of 60, with a shift toward negative at the very end of life.

You’ll hear the adage, “People don’t change.” Actually, people do, according to psychological science.

As personality researcher Christopher Soto explains, “We know that personality change can happen, that it usually happens gradually, and that it's usually for the better. But we don't fully understand the causes of personality change just yet.”

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People become more upbeat

An analysis of data from 60,000 people in the United States, the Netherlands, Sweden, Scotland, and Germany backed up earlier reports that most people become less neurotic after the age of 60, growing more positive, until hitting old age.

The analysis pulled together information from 16 studies, looking for links between personality changes and age and gender. Although the studies had differences, there were evident patterns across them.

The participants all answered questions designed to measure what psychology theory calls the Big Five traits. The volunteers answered the questions on at least three occasions, with the researchers measuring the changes.

What are the Big Five traits?

In the Big Five theory of personality, we’re each a combination of:

• Extraversion (also often spelled extroversion)
• Agreeableness
• Openness
• Conscientiousness
• Neuroticism

Each trait is imagined as a scale, so you can be more or less agreeable, for example.

• An extraverted person is sociable and fun-loving; a less extraverted person is reserved and quiet.
• An agreeable person is warm, trusting, and helpful; a less agreeable person is suspicious and uncooperative.
• An open person is imaginative, curious, and artistic, drawn to variety and able to accept differences; a less open person prefers routine and focuses on practical things rather than art or abstractions.
• A conscientious person is disciplined, careful and responsible; a less conscientious person is disorganized and impulsive or distractible.
• A neurotic person is anxious and pessimistic or experiences big shifts; a less neurotic person is calm, upbeat, and more stable.

Other research has shown increases in extraversion and conscientiousness from 21 to 60, as you grow into your role, building careers and families or other bonds. In the above analysis, across the studies, both extraversion and conscientiousness steadily fell past 60 — when you may be more free to follow your own whims.

Openness was stable through middle adulthood but decreased in the last years.

Neuroticism — being anxious and pessimistic — decreased through most of adulthood, especially for women, before rising again in old age and people around them were dying.

Why do we say: “People don’t change”?

The real message of the adage: Don’t expect someone to change the way you want him to, and not quickly.

Other research suggests that, while your personality may change with time, over the decades you’re likely to end up striking others as being “more open,” for example, or “more disciplined” than other people in your age group.

That isn’t true for everyone, however. Some individuals don’t fit the trend. In the latest analysis, the researchers wrote, “people change differently on different traits, personality is not stable for everyone across the lifespan (but is for some people), and accounting for or explaining these changes is difficult.”

Can life change you?

There is evidence that a catastrophe can change personality, making an extraverted and less neurotic person withdrawn and anxious. Serious disease like dementia, addictions, or mental illness can change personality and behavior. For example, alcoholism over time triggers depression and may lead to abusive behavior.

On the other hand, feeling happy with your life may reinforce certain personality traits. When life is going well, you may become more agreeable, conscientious, emotionally stable, and introverted.

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