The balance of microbes in the human gut varies substantially from morning to night and even more by season—with profound fluctuations completely transforming the microbiome from summer to winter, according to a study to be presented at Digestive Disease Week (DDW) 2023.
The microbiome—bacteria that live in and on the body—accounts for about half of the cells that make a human, and fluctuations in the makeup of the microbiome could have wide-ranging implications for health and medicine.