An increasing number of scientists are waking up to the idea of a link between the digestive system and problems with sleep, reports The Guardian.

“This is an embryonic field right now in the annals of sleep research,” says Matt Walker, the author of Why We Sleep and the director of the Center for Human Sleep Science at the University of California, Berkeley. “We know an enormous amount about the relationship between a lack of sleep and appetite, obesity and weight gain, as well as aspects of insulin resistance and glucose regulation. What we don’t fully understand yet is the role of the microbiome in sleep.”

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