testosterone
A recent study published in the journal Psychopharmacology shows that men currently using anabolic-androgenic steroids face challenges in accurately recognizing facial expressions of emotion, especially those of anger and disgust. This effect appears to be more pronounced among individuals with steroid dependence. Anabolic-androgenic steroids, synthetic variations of the male hormone testosterone, are widely known for their use among athletes and bodybuilders to enhance physical performance and muscle mass. Despite their popularity, anabolic-androgenic steroids come with a host of potential si...
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A study from Norway has found that men who use muscle-boosting steroids are more likely to suffer from poor sleep quality. The findings, published in BMC Psychiatry, suggest that these sleep issues might persist even after steroid use ends, highlighting the need for increased awareness of the side effects associated with these substances. Anabolic-androgenic steroids, commonly referred to simply as “steroids,” are synthetic substances that mimic the effects of the male sex hormone testosterone. They are used medically to treat conditions like delayed puberty and muscle loss from certain diseas...
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An experimental study conducted on healthy young men found that applying 150 mg of testosterone gel to their upper arms eliminated their strategic prosocial behavior, which is the tendency to act more prosocially when observed by others. The paper was published in Neuropsychopharmacology. Prosocial behavior refers to voluntary actions that are intended to benefit or help others, often without direct personal gain. It encompasses a wide range of activities, such as sharing, comforting, rescuing, and cooperating. It is motivated by empathy, moral principles, or a desire to comply with social nor...
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A recent study conducted in the Netherlands on women suffering from social anxiety disorder revealed that participants with stronger avoidance tendencies experienced larger reductions in fear during a therapy session after receiving testosterone, compared to when they received a placebo. However, this effect did not persist into subsequent sessions, nor did it impact the severity of their symptoms. The study was published in Psychoneuroendocrinology. Social anxiety disorder is a mental health condition characterized by an intense and persistent fear of social situations. Individuals with this ...
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A study spanning eight weeks, focusing on girls aged 11 to 14, found that weekly fluctuations in testosterone levels could predict mood changes. However, the strength and nature of this correlation varied based on theta wave activity in the frontal lobe, cortisol reactivity, and other factors. The study was published in Development and Psychopathology. Puberty is a natural and gradual process of physical and sexual maturation that marks the transition from childhood to adulthood in humans. It is typically initiated by hormonal changes, including increased production of sex hormones such as est...
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Scientists have shed new light on the intricate relationship between hormones, shame, and aggression. A recent study, published in the journal Psychoneuroendocrinology, reveals that testosterone reactivity plays a pivotal role in moderating aggressive behavior among young men, especially when coupled with an individual’s tendency to experience feelings of shame. Previous studies have explored the role of testosterone in aggression and the impact of shame on behavior, but this new research delves deeper into the interplay between these factors. The researchers were motivated by the need to expl...
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A study conducted on male weightlifters in Norway found that those who used anabolic-androgenic steroids exhibited significantly more symptoms of psychopathology than those who did not use these substances. On the other hand, they were much stronger than non-users, although they spent less time training per week. The study was published in Brain and Behavior. Androgenic-anabolic steroids, commonly referred to simply as steroids, are synthetic substances that mimic the effects of the male sex hormone testosterone. They are known for their dual properties: androgenic – related to the development...
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A new study published inPsychological Science has found that agentic narcissism is positively associated with self-reported and objectively measured testosterone levels. “I have studied narcissism as a personality trait for several years. Recent findings indicated that narcissism might be a multidimensional construct,” said study author Marcin Zajenkowski, a professor at the University of Warsaw. “I was interested in biological correlates of various narcissism dimensions, predicting that only, so-called, agentic narcissism would be positively associated with testosterone level.” Grandiose narc...
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The effect of testosterone on brain regions involved in emotion regulation changes over time, according to new research published in Developmental Science. Its role appears to shifts from facilitation during early adolescence to potentially impeding control in young adulthood. This highlights the complex and age-dependent influence of testosterone on the developing brain. Testosterone is a sex hormone that plays several important roles in the body. It’s often thought of as a male hormone, because it’s produced in large amounts in men’s bodies, but it’s also present in smaller amounts in women....
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New research published in Heliyon explores the relationship between prenatal testosterone exposure and psychopathic personality traits. The findings indicate that there is a connection between prenatal testosterone exposure and increased egocentricity among men, but not among women. These results add to the current knowledge on the impact of prenatal testosterone exposure on the development of different aspects of psychopathy. Psychopathy is a cluster of personality traits associated with antisocial and violent behavior. Research suggests that both environmental and biological factors, such as...
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