Chinese researchers find gut bacteria can help treat insomnia

A groundbreaking study from China suggests a novel approach to combating insomnia: fecal microbiota transplantation. Researchers discovered that administering capsules containing microbes from healthy donors can significantly alleviate symptoms of chronic sleeplessness.

The study, published in the "Journal of Internal Medicine," involved 80 patients diagnosed with insomnia. Half received capsules containing fecal bacteria from healthy donors after antibiotic treatment, while the other half received a placebo. Sleep quality was assessed using polysomnography, a comprehensive hospital-based sleep study.

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Our findings provide clinical evidence that gut microbiota-targeted therapy can be a promising new strategy for treating chronic insomnia.

After one month, the group receiving fecal transplants showed markedly improved sleep efficiency and fewer nighttime awakenings compared to the placebo group. Over a period of two to six months, these patients also reported a sustained improvement in overall sleep quality, according to survey responses.

Lead researcher Professor Lin Lu from Peking University noted that the therapy was well-tolerated and led to an increase in the diversity of gut microorganisms. "Our findings provide clinical evidence that gut microbiota-targeted therapy can be a promising new strategy for treating chronic insomnia," stated co-corresponding author Dr. Yanping Bao. The research also deepens understanding of the gut-brain axis's role in regulating human sleep.

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This work also deepens the understanding of the role of the gut-brain axis in regulating sleep in humans.