The heart, lungs, and stomach all contract in their own distinct rhythms and continuous information about these rhythms is send to the brain. This ‘sensing of our internal world’ (or interoception) is tightly intertwined with how we sense and perceive the external world (exteroception). Through which pathways might such an influence take place? How far reaching is the influence of interoceptive rhythms in the brain? And what might the purpose of such an interaction be? We try to answer all this, and more, in our latest review paper “Interoceptive rhythms in the brain”, which is out now in Nature Neuroscience.