“Florida State University College of Medicine Associate Professor Antonio Terracciano joined a team of researchers from the United States, United Kingdom and Italy to examine the connection between personality traits and brain structure. […] The traits include neuroticism, the tendency to be in a negative emotional state; extraversion, the tendency to be sociable and enthusiastic; openness, how open-minded a person is; agreeableness, a measure of altruism and cooperativeness; and conscientiousness, a measure of self-control and determination. As people get older, neuroticism goes down — people become better at handling emotions — while conscientiousness and agreeableness go up — people become progressively more responsible and less antagonistic.”