A new study indicates that poor sleep can negatively affect your gut microbiome, which can, in turn, lead to additional health issues
Researchers from Nova Southeastern University (NSUTh) wanted to see how strong a connection there is between what is going on in our insides and how that may impact the quality of sleep we experience.
“Given the strong gut-brain bidirectional communication they likely influence each other,” says Jaime Tartar, Ph.D., a professor and research director in NSU’s College of Psychology who was part of the research team. “Based on previous reports, we think that poor sleep probably exerts a strong negative effect on gut health/microbiome diversity.”
What is ‘gut microbiome’?
What you may be asking yourself right now is: “What in the world is a gut microbiome?”
Simply put, it’s all the microorganisms (bacteria, viruses, protozoa and fungi) and their genetic material found in your gastrointestinal (GI) tract. And yes, we all have these in our GI tract, but not all at the same levels or diversity. As it turns out, it’s the diversity that could be the key.
For the study, subjects wore what Prof Tartar called an “Apple Watch on steroids” to bed, which monitored all sorts of vitals. This allowed researchers to determine just how well the subjects slept at night, and then they tested the subjects’ gut microbiome. They found that those who slept well had a more diverse – or “better” – gut microbiome.
Health problems linked with poor gut microbiome
Tartar said that gut microbiome diversity, or lack thereof, is associated with other health issues, such as Parkinson’s disease and autoimmune diseases, as well as psychological ones, like anxiety and depression.
The more diverse someone’s gut microbiome is, the greater is the likelihood that they will have better overall health.
“We know that sleep is pretty much the ‘Swiss Army knife’ of health,” says Prof Tartar. “Getting a good night’s sleep can lead to improved health, and a lack of sleep can have detrimental effects. We’ve all seen the reports that show not getting proper sleep can lead to short-term (stress, psychosocial issues) and long-term (cardiovascular disease, cancer) health problems. We know that the deepest stages of sleep is when the brain ‘takes out the trash’ since the brain and gut communicate with each other. Quality sleep impacts so many other facets of human health.”
Prof Tartar’s area of research focuses on the mechanisms and consequences of acute and chronic stress in humans and the impact of normal sleep and sleep deprivation on emotional processing and physiological functioning.
“We know that sleep is pretty much the ‘Swiss Army Knife of health” – Prof Jaime Tartar, Nova Southeastern University
What determines someone’s gut microbiome?
According to Robert Smith, Ph.D., an associate professor and research scientist at Nova Southeastern University (NSU) Halmos College of Natural Sciences and Oceanography, who is also a member of the research team, there are a couple of factors that come into play.
One is genetics – some people are predisposed at a genetic level to have a more diverse gut microbiome than their friends and neighbours. Another factor is drugs – certain medications, including antibiotics, can have an impact on the diversity of your gut microbiome. He also said that your diet plays a factor as well.
Smith says that their team, which included colleagues from Middle Tennessee State University, examined the association between sleep, the immune system and measures of cognition and emotion. He says that understanding how these parts of human physiology work may lead to a better understanding of the “two-way communication” between the person and their gut microbiome, and could lead to novel sleep intervention strategies.
“The preliminary results are promising, but there’s still more to learn. But eventually people may be able to take steps to manipulate their gut microbiome in order to help them get a good night’s sleep.”
Source: Nova Southeastern University via www.sciencedaily.com
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