The paradox of sex: a source of life and pleasure, pain and shame, beauty and destruction – how do we make sense of the mixed emotions of sexuality? Gurit Birnbaum, head of the Sexuality in Close Relationships Lab at the IDC, has been exploring our multi-faceted relationship with sex. In her fascinating TEDx talk, she offers some unique insights about how pillow talk may serve to initiate a romantic relationship, how the complexity of sex helps us cope with our own mortality, and why the missionary position is still the most popular.