Humans can have sex anytime we damn well please – so why do we mostly do it in the dark? Here's what science has to say about our preference for nighttime hookups. The When Lots of studies have looked at the timing and frequency at which humans tend to have sex, over a range of cycling time windows. For the sake of simplicity, we're going to focus on the daily and weekly rhythms observed in two such studies. The first was conducted by researchers John Palmer, Richard Udry and Naomi Morris, and published in a 1982 issue of Human Biology. Palmer and his colleagues analyzed the sexual activity of 78 young, married couples over a 12 month period, and observed a distinct weekly rhythm to sexual...
↧