For the first time, researchers have managed to establish what looks like a causal and reciprocal relationship between the bacteria in our guts and insomnia. The work indicates that certain bacteria can increase the risk of suffering this sleep disorder, while others can help prevent it. However, the results show that insomnia itself can alter the abundance of some types of bacteria as well. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

Insomnia is an extremely common sleep condition that is characterized by difficulty falling asleep or subsequent poor sleep quality . This can be accompanied by fatigue and irritability, which can negatively affect daily life. It is estimated that around 10 to 20 percent of the population suffers

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