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Having ring and index fingers of similar lengths is one sign a person was exposed to higher amounts.
London - To see if a prospective partner is the suspicious type, look at the length of their fingers.
Scientists have found suspicion is driven by testosterone, with people less likely to be trusting if they were exposed to high levels of the hormone in the womb.
Although it is a male hormone, testosterone is found in women, including pregnant mothers.
Having ring and index fingers of similar lengths is one sign a person was exposed to higher amounts. They are also more likely to be sensitive to the hormone.
However, they are no better at spotting cheaters or con-artists, as was previously thought. Instead, they are indiscriminately suspicious of everyone, which could be detrimental to their long-term financial choices.
The research, by the Maison de la Recherche at the University of Toulouse, was published in Royal Society journal Biology Letters.
The French authors, led by Dr Jean-Francois Bonnefon, wrote that testosterone “is likely to disrupt co-operation without improving trustworthiness detection”.
The team assessed pre-birth exposure to the hormone by looking at the finger lengths of 144 female volunteers. - Daily Mail
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