Because contemporary psychologists are so skittish about aggression, you see a lot of passive-aggressive behavior in our field. Passive-aggression is aggression disguised to look like something else, ...

Aggression is the number one behavior problem of humans, dogs, cats, and horses (to name but a few mammalian species). It is a perfectly normal survival-necessary behavior when expressed at the right ...

A new study reveals that aggressive behavior during early teenage years can signal accelerated biological aging later in life ...

When people with high levels of narcissism feel ignored or excluded by others, they are more likely to lash out using ...