This led to a small number of overarching trait dimensions that personality psychologists have scientifically tested in large population samples. Who developed the Big Five personality traits?

Individuals whose personality traits resonate with the “Type A” description—including characteristics like hostility—could potentially experience interpersonal difficulties as a result ...

Type A personalities are typically driven, ambitious, successful, and may even live longer. But, they are also more stressed and prone to depression, anxiety, and relationship problems.