08/10/2025
New research involving nearly 400,000 people has found a clear connection between the gut microbiome and insomnia risk. Scientists identified 14 types of gut bacteria linked to a higher chance of insomnia, and another 8 types that appeared protective. Interestingly, the relationship runs both waysâpoor sleep was also associated with shifts in gut bacteria, creating a cycle where insomnia and gut imbalance reinforce each other.
This is exciting news because it highlights that sleep troubles may not just be âin your head.â Instead, your microbiome could be playing a role in whether you drift off easily or lie awake at night. And it means thereâs more than one way to break the cycle.
The takeaway? If youâre struggling with sleep, supporting your gut health may help restore more restful nightsâand focusing on consistent, gut-friendly habits could be the key to lasting change.