Your personality traits might indicate whether you are at an increased risk of developing Alzheimer's disease as you age. Those who are less agreeable and more confrontational appear to have better neuroprotection against the disease. Lower agreeableness was associated with lower brain volume loss in the hippocampus, entorhinal cortex, and other areas linked to memory. Higher openness was also associated with lower brain volume loss in the hippocampus. The data suggests a combination of lower agreeableness and higher openness could be independent predictors of the preservation of brain volume in areas vulnerable to neurodegeneration.
Using the Big Five model of personality traits, researchers found smokers were more likely to experience an increase in neuroticism over time. Quitting smoking did not have an impact on altering the negative personality traits.
People who ranked higher for conscientiousness and lower in openness tend to be morning people, a new study reports. Researchers say the link between personality traits and morning/evening chronotypes is partly due to genetic factors.
Study reveals those with narcissistic personality traits may be more politically active. Those with high levels of narcissism were more likely to contact politicians, sign petitions, and donate to political causes. Previous studies linked narcissistic traits to behaviors harmful to functioning democracies, including conflict and civic strife.