In zebrafish, habenula kisspeptin modulated the fear response and increased exploratory behaviour in a novel tank test.22 Similarly, i.c.v. infusion of kisspeptin induced antidepressant‐like effect during a forced‐swim test.23 By contrast, i.c.v. injection of kisspeptin resulted in anxiety‐like behaviour in rats.24 Differences in the experimental paradigm and species may account for the inconsistencies on the role of kisspeptin in anxiety‐like behaviour. The gene discussed is KISS1; the disease is Anxiety.