--- title: "Sleep Apnea and Cancer: One more reason to treat your snoring" description: How is it possible that snoring, sleep apnea, and cancer are related? Learn more about what recent studies tell us by... image: https://www.sleepresolutions.com/hubfs/research_with_white_space.jpg --- ![logo.png](https://www.sleepresolutions.com/hs-fs/hubfs/2016_Redesign/logo.jpg?width=600&name=logo.jpg "logo.png") - [Home](https://www.sleepresolutions.com) - [About Us](https://www.sleepresolutions.com/about-sleep-resolutions-and-knight-time-medical-garden-city-dodge-city-kansas) - [Meet Our Staff](https://www.sleepresolutions.com/sleep-resolutions-and-knight-time-medical-staff-garden-city-dodge-city-kansas) - [Meet Our Medical Director](https://www.sleepresolutions.com/sleep-medicine-medical-director-garden-city-dodge-city-kansas) - [Testimonials](https://www.sleepresolutions.com/testimonials) - [Sleep Resolutions Locations](https://www.sleepresolutions.com/sleep-center-locations) - [Night Time Medical Location](https://www.sleepresolutions.com/knight-time-medical-location) - [Sleep Services](https://www.sleepresolutions.com/sleep-disorders-testing-sleep-medicine-dodge-city-garden-city-kansas) - [Sleep Studies](https://www.sleepresolutions.com/sleep-studies-type-garden-city-dodge-city-kansas) - [CPAP Therapy](https://www.sleepresolutions.com/cpap-machines-cpap-therapy-cpap-masks) - [CPAP Equipment](https://www.sleepresolutions.com/cpap-machines-cpap-therapy-cpap-masks) - [CPAP Machines](https://www.sleepresolutions.com/cpap-machines) - [APAP Machines](https://www.sleepresolutions.com/automatic-positive-airway-pressure-apap-machines) - [BiPAP Machines](https://www.sleepresolutions.com/bipap-machines) - [Learning Center](https://www.sleepresolutions.com/sleep-apnea-learning-center) - [Blog](https://www.sleepresolutions.com/blog) - [Contact](https://www.sleepresolutions.com/contact-us-sleep-resolutions) ![bg-img11.jpg](https://www.sleepresolutions.com/hs-fs/hubfs/2016_Redesign/bigstock-Night-sky-with-stars-and-full--102455816.jpg?width=1600&name=bigstock-Night-sky-with-stars-and-full--102455816.jpg "bg-img11.jpg") ## [Sleep Apnea and Cancer: One more reason to treat your snoring](https://www.sleepresolutions.com/blog/sleep-apnea-and-cancer-reasons-to-treat-snoring) ![Kevin Asp, CRT, RPSGT](https://www.sleepresolutions.com/hubfs/kevin%20pic.jpg) By [Kevin Asp, CRT, RPSGT](https://www.sleepresolutions.com/blog/author/kevin-asp-crt-rpsgt) - October 1, 2024 - - - - ![sleep-apnea-snoring-and-cancer](https://www.sleepresolutions.com/hs-fs/hubfs/cancer_and_sleep_apnea.jpg?width=640&name=cancer_and_sleep_apnea.jpg "sleep-apnea-snoring-and-cancer") It seems unlikely that snoring, which seems harmless, could actually be linked to cancer. However, untreated chronic snoring is destined to turn into obstructive sleep apnea (OSA), and recent research shows compelling connections between OSA and cancer.  #### What the research says Several recent studies—each using different approaches to observe potential connections between cancer and sleep-disordered breathing (SDB)—conclude that what happens during snoring or sleep apnea creates conditions that support the growth and spread of tumors. SDB includes sleep apnea and snoring. - **Istanbul** (Nov 2015)—The 7th World Congress of the World Sleep Federation reported that people with untreated severe OSA face a five-times-higher risk for developing and dying from cancer. - **Wisconsin Cohort** (launched in 1988, ongoing)—This well-publicized study confirms links between SDB and cancer-related death. Those with SDB were found to be twice as likely to die from cancer than those with no night-time breathing problems.  - **Spain** (2008)—Here, they examined the likelihood that people with OSA would be diagnosed with cancer and discovered that those with severe OSA were 65 percent more likely to receive a cancer diagnosis, especially for men under the age of 65. - **Taiwan** (2014)—Researchers looked at several sleep disorders, including OSA, and recorded significantly higher risks for prostate cancer in patients who already suffered from OSA. Also, nasal, brain, colon, and breast cancer were found to occur more frequently for those with OSA.  - **Chicago mouse studies** (2014)—In research labs using mice that already had tumors, scientists found that those placed in low oxygen environments saw an accelerated progression of their cancer. ![cancer-sleep-apnea-research](https://www.sleepresolutions.com/hs-fs/hubfs/research_with_white_space.jpg?width=211&name=research_with_white_space.jpg "cancer-sleep-apnea-research") Estimates show that up to 28 million Americans suffer from OSA. Its treatment and prevention have already become a top concern for doctors. OSA is connected to many other chronic health problems, including diabetes, congestive heart failure, stroke, high blood pressure and cardiovascular disease. Adding cancer to this list of potential problems only makes more urgent the need for diagnosis and treatment of SDB. #### Snoring, sleep apnea, and the triple threat Snoring, and its more severe cousin, OSA, creates a series of responses in the body as it tries to correct oxygen depletion in the bloodstream. Let's take a closer look.  ###### What happens in the upper airway when you snore? The tissues in your upper airway tend to lose structure as you sleep. You're relaxed, after all, and so are the muscles in the chest, neck, and face. Breathing in and out through an airway that's surrounded by soft or "flabby" tissue results in audible vibrations in the throat. These sounds may be soft or loud, or you might hear groans or whistles instead of the rattling most often associated with snoring. Snoring is a consequence of what is known as *upper airway resistance*. Over time, this upper airway resistance can grow louder and more severe. Upper airway resistance, though it does not prevent breathing, does make your body work harder to breathe at night. Think about how well you sleep when you have a head cold. This is a temporary form of upper airway resistance, but it still means you will struggle to breathe due to congestion or inflammation in your nasal passages. Snoring ultimately leads to disrupted sleep (not only for the snorer, but for the snorer's bed partner). Add in the factor of aging: this can worsen snoring by default, as our tissues and muscles generally lose their tone as we grow older. This creates the perfect opportunity for it to develop into OSA. ![what-is-sleep-apnea](https://www.sleepresolutions.com/hs-fs/hubfs/sleep_apnea_process_diagram.jpg?width=299&name=sleep_apnea_process_diagram.jpg "what-is-sleep-apnea") ###### When snoring becomes sleep apnea [OSA occurs when your upper airway collapses as you try to breathe while sleeping](https://www.sleepresolutions.com/blog/the-different-kinds-of-sleep-apnea-obstructive-central-mixed). These obstructions, partial or total, mechanically restrict your airway for periods from 10 seconds to more than a minute, which explains the silence, choking, or gasping that often occurs during an episode of apnea. You literally stop breathing in your sleep, but are unaware of it. As you sleep, your brain normally takes over the voluntary function of breathing for you. Once your brain notes the rapid drop in the oxygen in your bloodstream, it sends out stress signals to force you to wake up so you can voluntarily clear your airway and breathe. Your body requires an adequate supply of oxygen in order to function properly. Without it, all systems must work harder to perform even basic functions. When breathing obstructions happen all night long, you can expect to have very poor sleep with multiple night-time awakenings. If left undiagnosed and untreated, long-term problems can and will develop. ##### The triple threat Snoring and sleep apnea are both part of a spectrum of what is known as sleep-disordered breathing (SDB). In each case, the issue of untreated upper airway resistance—common to all SDB—leads to the following problems: ![chronic-low-level-oxygen-and-cancer](https://www.sleepresolutions.com/hs-fs/hubfs/hypoxia_with_white_space.jpg?width=288&name=hypoxia_with_white_space.jpg "chronic-low-level-oxygen-and-cancer") ###### Chronic blood oxygen deprivation Clinically, the term is *nocturnal intermittent hypoxia.* This is the main consequence of OSA: the upper airway collapses, you can't breathe, and this starves the bloodstream oxygen. The brainforces awakenings so you can force yourself to breathe to quickly replenish the bloodstream of its lost oxygen. It turns out that nocturnal intermitten hypoxia strongly links sleep apnea and cancer. The "blood oxygen roller coaster" it creates establishes conditions in the body which encourage cancer to grow and spread. The body has a backup system for long-term problems with unchecked hypoxia: it can create additional blood vessels to improve oxygen supply to the tissues. However, the unintended consequence of this is that ongoing problems with hypoxia provide the perfect conditions for growing and spreading tumors as well.  ###### Systemic inflammation and the immune system Untreated SDB has been shown to increase inflammation *systemically* (or, throughout the body). If this inflammation continues without relief, it creates chemical imbalances in the bloodstream that lead to oxidative stress, the culprit behind many chronic health problems. In the presence of systemic inflammation, the immune system tries to compensate for these problems, but in doing so, it may also improve conditions for tumors to establish, grow, and spread. Immune system problems (like psoriasis and autoimmune disorders) are also widely associated with a combination of sleep disruption and nocturnal intermittent hypoxia.  ###### Oxidative stress *Oxidation* is the consequence of long-term inflammation; *oxidative stress* describes the damage that results from unchecked systemic inflammation.  The blood oxygen roller coaster described above contributes to oxidative stress by wearing down the system enough so that cancer (and other conditions, like hardening of the arteries or heart failure) can take hold. In fact, in the mouse studies cited above, tumors were shown to grow significantly larger and more aggressively in the oxygen-deprived mice than in those not deprived of oxygen.  #### The cancer factor Sleep is a whole-body process that has a unique relationship to all body systems. When sleep is disrupted, it is fair to say that system disruption also occurs. Over time, these disruptions render an environment where chronic disease can flourish. In the case of cancer, its growth and spread seem to have a direct relationship to untreated OSA. Some research even suggests that the biggest problem with OSA—nocturnal intermittent hypoxia—can be blamed for increased resistance of cancer cells to therapies such as radiation.  The evidence thus far is compelling and supportive across several studies, but researchers admit that more research must be done to more specifically identify key links between SDB and cancer which could unlock solutions for prevention, treatment, and survival, some which may include the most commonly prescribed therapy for OSA: continuous positive airway pressure (CPAP). In fact, in the Wisconsin Cohort study, they discovered that the association between cancer and untreated OSA strengthened once they removed patients treated with CPAP from their mortality studies. #### What can you do? Sleep-disordered breathing and cancer, separately, are both highly prevalent (even if undiagnosed), but also potentially treatable and preventable. Prevention is mostly a matter of practicing a healthy lifestyle. - Smoking and consuming alcohol contribute to poor health and, when combined with poor sleep, have a devastating impact on the immune system.  - Weight management is important. Obesity is common among patients with SDB and also leads to systemic inflammation; scientific evidence also shows obesity to have its own relationships to the development of cancer.  - Treating your current medical conditions gives you an edge. Overall health improves the immune system and repairs the damage caused by oxidative stress, no matter the cause. - Improving the length and quality of your sleep can relieve or even eliminate some symptoms of other health problems you might have. Sleep, after all, provides your body with the opportunity it needs to heal and restore itself. If your sleep is regularly interrupted, you will eventually face more or worsened medical problems. If you've put off a visit to your doctor to learn how to treat your snoring, don't delay. And remember, snoring and OSA already have well-established links to other chronic illnesses, such as cardiovascular disease and diabetes. There's *no* good reason *not* to have sleep-disordered breathing concerns checked out; adding a potential cancer diagnosis to your risk factors is just *one more good reason* to call your doctor today.  If you'd like more inormation on this or any of our sleep medicine content provided by Sleep Resolutions please call us today (620) 271-9400. Or Click on the image below to request you FREE sleep Assessment today! 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