Aggression in females may be different than anger in males, especially in children. Aggression refers to the intentional infliction of harm on one person by another. It can be direct, including verbal or physical aggression, or indirect
Verbal aggression is the infliction of harm through words, such as name-calling or criticizing.
Physical aggression aims to inflict harm through methods like pushing, kicking or hitting.
Indirect aggression involves manipulation, and the identity of the aggressor is more difficult to determine. People who use this type may attempt to harm others by damaging their relationships, possibly by damaging another person's friendships or peer inclusion.
Direct aggression is more common than indirect aggression among both males and females
Hormones and genetics contribute to female aggression. A 2003 study published by Elizabeth Cashdan in "Aggressive Behavior" found that women with low levels of androstenedione and testosterone may be less likely to express their competitive feelings with aggression. Competitive feelings may result because of competition for school success, athletic skill, success at another activity, looking attractive, male or female attention, popularity, prestige, a physical object or getting one's way.
Increased activity of serotonin, a brain chemical, is associated with a decrease in angry and aggressive behaviors. Researchers have found that women with one or both of two alterations in the promoter region of the serotonin receptor 2C gene display more anger, hostility and aggression, according to a University of Pittsburgh study reported by Science Daily.