16 Oct 2025

How good gut bugs could help you sleep

From Nine To Noon, 9:20 am on 16 October 2025
Collage of mid adult woman in bed. (Photo by IAN HOOTON/SCIENCE PHOTO LIBRARY / IHO / Science Photo Library via AFP)

Photo: IAN HOOTON/SCIENCE PHOTO LIBRARY

New research suggests that gut and mouth microbiome can influence sleep. Humans have trillions of  bacteria, viruses and fungi that make up the body's microbiota. Dr Kin Yuen is sleep specialist and spokesperson for the American Academy of Sleep Medicine. She says there has been a predominant theory that having sleep disorders is disruptive to our microbiomes.

But new evidence suggests it is a relationship that could go in both directions: healthy, diverse microbiome could help us fall asleep and stay asleep.