People love taking personality tests, but are personality types real? Maybe, and maybe not. Personality development is complicated, and most healthy personality types are not so easily defined. Your ...

Some people believe personality is fixed, but more recent research suggests that personality may develop over time and that people’s personality traits can change. Personality types group people into ...

Personality types A, B, C, and D group people according to key personality traits. These types may affect many areas of life, including an individual’s health. Essentially, the personality types A, B, ...

You know the "type:" So-called “Type A” personalities are hard-charging, determined to compete and to win. Combining traits such as drive and impatience, Type A was once thought to be related to heart ...

Teams are essential to the human experience. From sports to political parties, we are predisposed toward rallying in groups according to common interests. It goes without saying, therefore, that teams ...

In ancient Greece, the physician Hippocrates is said to have theorized that the ratio of four bodily fluids—blood, yellow bile, black bile, and phlegm—dictated a person’s distinct temperament. The ...