How to time the time ‐ A preface to the special issue Circadian Rhythms in the Brain

In this Preface to the Journal of Neurochemistry special issue “Circadian Rhythms in Brain”, we summarize recent insights into connections between circadian rhythms and societal concerns related aging food intake, with consequences for healthy or aberrant metabolic homeostasis. The articles were written by leading authors who presented their research at 2019 Congress European Biological Rhythm Society, are thus reflective a broad variety state-of-the-art on all levels chronobiology, from rhythm generators various tissues (including astrocytes) molecular mechanisms they base on, such as GABAergic regulation ubiquitination, systems behavioral level effects chrono-nutrition aging. Cover Image issue: https://doi.org/10.1111/jnc.15058.