SLEEP-DEPRIVED men are likely to believe that women want to have sex with them, a new study has found. Researchers at the Hendrix College in Arkansas tackling the age-old question "does she want to have sex with me?" have found a big night out on the town may give them rose-coloured glasses.
The study questioned a group of 31 male and 29 female college students about their interest in sex and desire to have sex. The questions were asked before and after a night without sleep.
The results were not surprising.
Men proved to be more interested in sex than women both before and after the sleepless night.
Both men and women understood women's intensions as being significantly lower than men.
However, once sleep deprived, the study showed men's judgment changed significantly. They now believed women's sexual interest and intentions were similar to their own.
Sleep deprivation, however, appeared to have no impact on female participant perceptions.
"Our findings here are similar to those from studies using alcohol, which similarly inhibits the frontal lobe," said co-principal investigator Dr Jennifer Peszka.
In men, at least, it seems to impair the part of the brain responsible for inhibition and moral reasoning.
"Poor decision-making in these areas can lead to problems such as sexual harassment, unplanned pregnancy, sexually transmitted diseases and relationship conflicts which are all factors that have serious medical, educational and economic implications for both the individual and for society," she said.
The study, The Effects of Sleep Deprivation on Perceptual Processes Involved in Human Mating Decisions, was presented at the annual meeting of the Associated Professional Sleep Societies.
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