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Psychopathic women are more likely to use physical aggression

New research provides evidence that women with high levels of psychopathy are more likely to engage in physical, verbal, and indirect aggression against other women. The study indicates that while women generally favor covert competitive tactics, those with specific dark personality traits may bypass these social norms to target rivals directly. These findings were published in Evolutionary Behavioral Sciences.

Evolutionary theory suggests that humans compete for access to romantic partners through a process known as intrasexual selection. This competition can manifest in various ways depending on the sex of the individual. For women, biological factors related to reproduction play a significant role in shaping these competitive strategies.

The theory of obligatory parental investment notes that women face higher biological costs in reproduction than men. Because women carry the fetus during gestation and often care for infants, they must protect their physical well-being to ensure the survival of their offspring. This biological reality implies that direct physical confrontation is a high-risk strategy for women.

How the words people use reveal hidden patterns of personality dysfunction

Is it possible to spot personality dysfunction from someone’s everyday word use? My colleagues and I have conducted research that suggests you can, and often sooner than you might expect.

Whether in a quick text message, a long email, a casual chat with a friend, or a comment online, the words people choose quietly reveal deeper patterns in how they think, feel, and relate to others.

Everyone has personality traits – habitual ways of thinking, feeling and behaving. When these patterns become rigid, intense or disruptive, they can cause ongoing problems with emotions, sense of self and relationships.

Neuroscientists link a common inflammatory molecule to the dopaminergic mechanisms of addiction

Treatments for autoimmune disorders might offer hope for methamphetamine addiction. Research published in Science Signaling indicates that blocking a specific immune protein dampens the drug’s effect on the brain’s reward centers.

Study links men’s higher intelligence to fewer abusive relationship behaviors

A new study published in the journal Personality and Individual Differences shows that men with higher general intelligence are less likely to engage in abusive or coercive behaviors toward their romantic partners. The findings suggest that cognitive ability may play a role in how men manage conflict and commitment in heterosexual relationships.

General intelligence is a broad mental capacity that influences reasoning, planning, and problem-solving. Psychology research has long established that people with higher general intelligence tend to experience better life outcomes. They generally achieve higher levels of education and earn more money. They also tend to live longer and suffer from fewer health issues.

But the relationship between intelligence and romantic success is less clear. Some data suggests that intelligent people are less likely to divorce. Other studies indicate they may have sex less frequently or choose to have fewer children. Evolutionary psychologists have debated why this might be the case.

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