Our sex drives might not be high all the time, and that's OK. Participants can keep them in their pockets, clipped to their belts, in their bags, or in their hands. Journal of Sex Research, 29, According to a recent study from Ohio State University, young men think about sex 19 times per day. So, do men think about sex more often than women? Always on my mind Another approach, used by Wilhelm Hoffman and colleagues , involved issuing German adult volunteers with smartphones, which were set to notify them seven times a day at random intervals for a week. A couple of years ago, I was discussing the lack of good research in this area with my Psychology of Human Sexuality students, and indicated that this would be an interesting area in which to do research, if any of them were interested. A sex research statistic will therefore be assumed to have emanated from that source. However, rather than merely wonder about whether this is true, stop for a moment to consider how you could — or could not — prove it. In fact, sex only became a predominant thought towards the end of the day around midnight , and even then it was firmly in second place, behind sleep. Is that a lot? Women's social desirability scores were not related to their reports of thoughts about sleep, however, perhaps because there are no stereotypes about women and sleep the way there are about women and sex they aren't supposed to think about it as much as men and women and food they aren't supposed to eat it as much as men. People aren't very good at assessing information like that, and their reports are likely to be influenced by what they have heard in the past about the frequency of sexual thoughts and by expectations for their gender. Another scale that we administered to the participants measured their degree of comfort with sexuality erotophilia. How big does it need to be to count? In addition, the estimated thought frequencies were quite a bit lower than the actual counted frequencies, for all three need-related topics.