In their abstract, the authors highlight that subjects given both oxytocin and social support ‘exhibited the lowest cortisol concentrations as well as increased calmness and decreased anxiety during stress.’ However, the groups differed in their baseline levels; the lowest increase in cortisol in response to stress was seen not in the subjects given social support and oxytocin, but in those given social support and placebo. This evidence concerns the gene OXT and Anxiety.