In a recent study, after intense antibiotic treatment in a group of mice, there were a large number of metabolites that were significantly depleted compared to the control group.

These specific gut bacteria metabolites play a pivotal role in the tryptophan-serotonin pathway, as well as in sleep-wake cycles. The researchers found that in the gut bacteria-depleted mice, there was almost no serotonin and a high frequency of movement between sleep-wake cycles, meaning less optimal sleep.

This is just another example of how science is highlighting the ever-increasing body of research on the link between the gut and the brain