Abstract: Alan Kania, Agata Szlaga, Patryk Sambak, Anna Gugula, Ewa Blasiak, et al. (see pages [5362–5375][1]) Relaxin-3, a neuropeptide expressed primarily in neurons in the pontine nucleus incertus, regulates arousal, stress responses, and feeding by activating relaxin-family peptide receptor 3 (RXFP3