Gut microbes follow their own circadian rhythms, but melatonin in the gastrointestinal tract may help synchronize them with human circadian rhythms, researchers have found.
A healthy milieu of microbes in the human gut is known to be essential for good health. Previous studies have shown that animals with circadian disruptions have an altered profile of gut microbiota (PLoS One 2014;9:e97500). But many of the mechanisms underlying the interaction between circadian rhythms and gut microbiota are