Is this news? There have been studies for years showing Oxytocin (and also Vasopressin) is an important neurotransmitter in feelings of affection. I imagine the

Is this news? There have been studies for years showing Oxytocin (and also Vasopressin) is an important neurotransmitter in feelings of affection. I imagine the degree of the effect could be interesting, but I suspect this was voted up because of the original clickbaity title combined with being outside the typical domain for HN articles.