19 times a day is the average frequency with which men think about sex. Women (partly confirming the stereotype) really think about this topic less often: an average of 10 times a day.
But, as the author of the study, psychologist Terri Fisher from Ohio University (USA), explains, the point is not that men are more interested in sex – the stronger sex is generally more likely than women to think about physiological needs: 18 times a day – about food, 11 times – about sleep (women – 15 and 9 times, respectively).