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Can Sleep Apnea Cause Gastrointestinal Problems?

Health Digest
Health Digest
 2022-11-24

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Sleep apnea is more than just a nuisance, it can give rise to a number of health problems, according to a 2019 study published in the Journal of Clinical Sleep Medicine. Also known as obstructive sleep apnea (OSA), the condition has been associated with cardiovascular, metabolic, and neurologic diseases. Another study published in the Journal of Thoracic Disease notes that it's mostly seen in men, but it can ultimately affect anyone.

People with sleep apnea experience lapses in breathing as they sleep due to their upper airways collapsing or being obstructed (via Johns Hopkins Medicine ). This can cause snoring, snorting, or choking sounds as they struggle to inhale and exhale.

The Mayo Clinic notes how the sleep airway disorder can get in the way of a decent night's sleep. People with sleep apnea often wake up in the middle of the night, which prevents them from entering the deep and restorative phases of sleep. They may feel groggy and fatigued, and fragmented sleep can have an effect on their ability to function the next day.

High blood pressure, stroke, diabetes, and cancer are just some of the conditions that have been linked to sleep apnea (via Journal of Clinical Sleep Medicine). Gastrointestinal problems are another common consequence of the sleep disorder. Research shows that people with sleep disturbances like sleep apnea often experience digestive symptoms such as irritable bowel syndrome (IBS), acid reflux, and abdominal pains. Read on to find how sleep apnea can lead to poor gastrointestinal health.

It Alters Your Gut Bacteria

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One of the main ways in which sleep apnea can negatively affect your gastrointestinal health is by upsetting the balance of your gut bacteria. According to Medical News Today , the lower levels of oxygen caused by sleep apnea can boost some types of gut flora that thrive without oxygen while harming others that require it. Our gastrointestinal well-being, and perhaps our health in general, is shaped by the harmony of bacteria in the digestive tract . When this is thrown out of whack, it can have a negative domino effect on other aspects of our health.

Some researchers have discovered that children who snore have more harmful bacterial strains and fewer friendly ones than those who don't snore, per research published in the Journal of Clinical Sleep Medicine. It's believed that snoring causes inflammation in the body, which prompts adverse changes in gut microbiota. Researchers also looked at nasal microbiota; they found that patients with sleep apnea were more likely to have problems with their nasal biome compared to patients without sleep apnea.

It May Lead To Peptic Ulcer Bleeding

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Peptic ulcers are painful sores that emerge on the esophagus, stomach lining, or the upper region of the small intestine (via Nature Portfolio ). It's believed that peptic ulcers can develop out of the presence of bacteria in the gut, specifically a strain that's called Helicobacter pylori (H. pylori). Some studies have shown that sleep apnea may also play a role in the growth of peptic ulcers, per The American Journal of Medicine. Patients stop breathing throughout the night, which can cause intermittent hypoxia (a lack of oxygen), sympathetic nervous system activation, and systemic inflammation . Each of these activities can lead to the onset and development of peptic ulcers.

More specifically, when oxygen levels plummet in the body's tissues due to obstructed breathing, the dual trigger of sympathetic activity and inflammation in the body may increase levels of endothelial growth factor C -- a protein that's suggested to contribute to the development of peptic ulcers, according to a 2019 study published in Scientific Reports.

It Is Associated With Inflammatory Bowel Disease

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People with sleep apnea are more likely to have inflammatory bowel disease, including Crohn's disease and ulcerative colitis, according to a 2020 study published in The American Journal of Gastroenterology. This may be due to inflammation in the airways, which can arise from snoring and compromised breathing. Another study from 2019 notes that the relationship between any kind of impaired sleep (including from various primary sleep disorders like sleep apnea) and inflammatory bowel disease is thought to be bidirectional, though the causal link between the two remains unclear.

According to a 2014 study published in Clinical Gastroenterology and Hepatology, poor sleep may contribute toward inflammatory bowel diseases by having a harmful impact on immune health. When people are sleep deprived or constantly waking up throughout the night, they're more likely to have lower levels of interleukin 2. This is an important immunomodulatory cytokine that plays a role in regulating the immune system.

Research also reports that people with inflammatory bowel disease are more likely to develop sleep apnea. Again, this can be attributed to inflammation that goes side by side with inflammatory diseases, and increases individuals' risk of other illnesses including cardiovascular problems.

It Has Been Linked To Colon Cancer

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On the more severe end of the gastrointestinal spectrum, sleep apnea could elevate your risk of some cancers, according to 2017 research from the journal Gastrointestinal Endoscopy. The meta-analysis found that people with sleep apnea had a higher chance of developing colorectal cancer , which begins in the colon or rectum.

Insufficient sleep is one of the unfortunate side effects of sleep apnea, and is strongly associated with an increased cancer mortality. A 2011 study from the journal Cancer discovered that sleeping less than six hours per night can bump up individuals' risk of colon cancer by nearly 50%. Patients who reported having a shorter duration of sleep were more likely to be diagnosed with the precursor to a cancer tumor, known as a colorectal adenoma.

The direct cause of colon cancer remains unclear (via Cancer). However, the study authors hypothesized that the increased risk that patients with sleep apnea face may be due to a rise in insulin resistance, or the drop in melatonin production that comes along with sleep deprivation. Other researchers have suggested that overnight hypoxia caused by obstructed breathing might be the culprit (via American Journal of Respiratory and Critical Care Medicine).

It Can Cause Acid Reflux

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A large number of people dealing with sleep apnea also experience acid reflux. According to a 2016 study from the Journal of Clinical Sleep Medicine, around 78% of patients with sleep apnea who were evaluated in the study also experienced nighttime acid reflux.

Based on the findings of a 2003 study from the Archives of Internal Medicine, treating sleep apnea with a continuous positive airway pressure (CPAP) machine helped to significantly reduce the frequency of nocturnal esophageal acid exposure. Similarly, a study published in The Laryngoscope found that treating acid reflux symptoms was an effective way to improve sleep apnea.

CPAP therapy is a commonly prescribed and effective treatment for sleep apnea, per the Journal of Clinical Sleep Medicine. This involves wearing a mask that works by blowing a stream of humidified air into the back of the throat. It keeps the airway open and helps prevent lapses in breathing during sleep.

Whether or not you think you need treatment for sleep apnea, it's important to get your symptoms checked out and seek advice from a healthcare professional who can point you in the right direction, notes Asthma & Lung UK . There are a number of resources and strategies that you could try, which could help stop your condition from having a long-term impact on your health.

Read this next: Health Symptoms That Are Serious Red Flags

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