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Posted on Oct 11, 10:29PM | IANS
High levels of the male hormone, which boosts libido and builds muscle, may make men less likely to lie and cheat, the Daily Mail reported Thursday.
In a study, scientists boosted the testosterone levels of 46 men by smearing their skin with a gel containing the hormone. Another 45 were treated with a placebo.
Both groups were then asked to take part in a behavioural study which involved playing a simple game of dice in an isolated booth.
The higher the scores they entered into a computer, the more money they received as a reward, the Mail said.
Neuroscientist Bernd Weber, from the University of Bonn in Germany, said: "These experiments were designed such that the test subjects were able to lie."
"Due to the separate booths, nobody knew whether they were entering their real scores into the computer, or higher ones in order to get more money.
"However, the scientists were later able to determine if any of the volunteers had been cheating. The results showed that men with boosted testosterone lied less."
The researchers said the hormone was likely to increase a man's sense of pride and the need to develop a positive self-image.