People with personality traits that are part of the "Dark Tetrad" are more likely to buy into conspiracy theories, according to new research.

"People who have a match between personality and living space report better well-being, and they feel better about their life and have a better mood."

People who grew up with higher levels of lead exposure had lower levels of conscientiousness and agreeableness and higher levels of neuroticism as adults.

New research digs into the origins of narcissism and how "flexing" to show off can lead to a vicious cycle of trying to cope with insecurity.

Passion is not "a universally powerful cornerstone of achievement," researchers report. And the culture a person grew up in makes a big difference.

We can generally rely on first impressions from first dates, though other settings might be a better gauge of someone's personality.

Children who have higher levels of self-control appear to age more slowly than their peers at 45, according to a new study.

Getting people to think of health as a core part of their identity can help them stick to following COVID-19 guidelines like wearing a mask.

"The general picture is that individuals who believe in themselves, and believe that they are better than others, engage in the political process more."

"We saw that in these personality changes toward greater empathy, people placed a lot more importance upon more liberal ideologies..."