Aggressive behavior is exceptionally costly and has inspired decades of research. Over the years, scientists have largely agreed upon the following definition of aggression: "Any intentional attempt ...

How frustrating is it to deal with a passive aggressive person? Pretty quickly, our patience wears thin and we feel the pain of their hurtful words. Naturally, it's difficult, if not impossible, to ...

If you've ever had to grit your teeth during rush hour traffic or hold your tongue in a work meeting, you know just how pervasive feelings of aggression can be. We've all been there. Anger is one of ...

Research scientists say kids who are persistently aggressive or defiant in their teens were likely showing signs of persistent aggressive behavior years earlier when they are toddlers. Sometimes as a ...

They sound harmless, but they’re not. And yes, you’ve probably said at least one of them.

Before we had gaslighting and narcissism, passive-aggressive behavior was considered a major faux pax. It still is and for good reason. But let's back up a second—what exactly is "passive aggression"?

The phrases passive-aggressive people use without even realizing it can cause emotional harm and confusion. Just because someone might be expressing negative emotions in a subconscious way, that doesn ...

A new study found that prolonged mental fatigue can wear down cognitive resources, leading to higher rates of aggressive behavior. The findings improve understanding of why we may be more inclined to ...