Time for a portion of science. An exciting topic: #seks . We love it and find it very interesting. But how fun and fun it can be, sometimes it's also tricky. Especially if, for example, you can't get an erection or when sex hurts. Sexuologist Jacques van Lankveld (Open University) explains how sex therapy can help and explains why he sees a future in sex therapy via Skype!

Why do you feel like sex sometimes and sometimes you don't?
If you already have a great sex life, it can happen that you don't always feel like it. How is it that sometimes you tear off your partner's clothes, while the next day you prefer to hang with a bag of chips on the couch to watch a college from the University of the Netherlands? Sexuologist Stephanie Both investigates this in her 'Sexlab' at Leiden University and tells all the secrets of the bedroom in this college.

Sex