Does female presence affect testosterone levels in men?
Testosterone is commonly known as the male hormone (females have testosterone as well, but at lower concentrations). Testosterone is associated with certain behaviors, such as being socially dominant, aggressive, and sexually aroused. Because of its association with sexual arousal, it can be speculated that females influence testosterone levels in men.
This study investigated the impact of female presence on male testosterone levels and their risk-taking behavior. Subjects were skateboarders that had to show tricks to 1) a male researcher, or 2) an 18-year-old attractive female researcher.
Testosterone levels were 39% higher when the female researcher was present. In addition, the skateboarders were taking greater risks on their tricks (which resulted in more successes and crashes).
The researchers speculate that males take more risks when an attractive female is present, in an attempt to impress her and thereby increase their dating potential. In order to do so, males seem to be willing to accept increased risk at harm.
Testosterone was assessed at a single time point at the end of the experiment. Therefore, the time pattern of the increase in testosterone could not be established (e.ge how fast it goes up, how long it stays elevated after the female leaves, etc).
Disclaimer for athletic readers: while testosterone is often considered a muscle building hormone, the relatively small increase in testosterone observed in this study is unlikely to have any impact on muscle recovery or growth.
In conclusion, the presence of an attractive female increases testosterone levels and risk-taking behavior in men.
Go to the next infographic in the hormone series:
Testosterone injections increase organ size?
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