All living well guides
Lifestyle
Sleep Apnea and Inflammation
Obstructive sleep apnea causes repeated drops in oxygen during sleep that can fuel inflammation, fatigue and heart risk. It is common and often missed in people with rheumatic disease.
Video lesson
Why it matters
Obstructive sleep apnea happens when the throat repeatedly narrows or closes during sleep, briefly cutting off airflow. Each pause can lower oxygen and jolt the brain awake, often without you noticing. Many people with inflammatory disease blame their fatigue, morning headaches or poor concentration on their condition, when untreated sleep apnea may be adding to it. Sleep apnea is linked to high blood pressure, heart disease, stroke and diabetes, which are already more common in rheumatoid arthritis, gout and lupus. It is also linked to more gout attacks. Weight gain from steroids, reduced activity and neck or jaw involvement from arthritis can all raise the risk. The good news is that sleep apnea is very treatable once it is found.
What you can do
Notice the warning signs: loud snoring, pauses in breathing that someone else sees, waking up gasping, morning headaches, dry mouth and daytime sleepiness. A short questionnaire called STOP-Bang, which asks about snoring, tiredness, observed pauses, blood pressure, body mass index, age, neck size and sex, can help you and your doctor judge your risk. If your score is higher, ask about a sleep study, which can often be done at home. If you are diagnosed, using CPAP, a machine that keeps the airway open with gentle air pressure, most nights is what makes the difference, and mask fitting support helps. Sleeping on your side, limiting alcohol in the evening and losing weight if needed can also reduce apnea events.
Call your care team if
Call your care team if you or a partner notice loud snoring with breathing pauses, you fall asleep while driving or during conversations, you wake gasping or with chest pain, or your fatigue is out of proportion to your disease activity. Also ask about sleep apnea if you have hard-to-control blood pressure or frequent gout attacks.
The science behind it
In obstructive sleep apnea, each breathing pause is followed by a drop in oxygen and then rapid reoxygenation when breathing resumes. This cycle, called intermittent hypoxia, behaves much like repeated small injuries: it generates oxidative stress, activates the inflammatory switch NF-kB and the oxygen-sensing protein HIF-1, and increases production of cytokines such as IL-6 and TNF, along with C-reactive protein (CRP). Each arousal also triggers a burst of sympathetic, fight-or-flight, nerve activity that raises blood pressure overnight.
In gout, falling oxygen speeds up the breakdown of cell energy molecules into purines, raising uric acid production overnight, and mild acidosis may favor crystal formation. A large UK primary care study found that people diagnosed with sleep apnea had a higher risk of developing gout in the years that followed (Blagojevic-Bucknall Arthritis Rheumatol 2019). Studies also suggest higher rates of sleep apnea in rheumatoid arthritis, and smaller studies point to sleep-disordered breathing in lupus, often alongside steroid-related weight gain.
Screening tools help find people who need testing. STOP-Bang was developed and validated in surgical patients and identifies people at higher risk of moderate to severe sleep apnea (Chung Anesthesiology 2008). The American Academy of Sleep Medicine recommends diagnostic testing with polysomnography or, in uncomplicated adults with suspected moderate to severe sleep apnea, home sleep apnea testing (Kapur J Clin Sleep Med 2017).
Treatment may help inflammation too. Studies suggest that regular CPAP use can lower CRP and IL-6 in people with sleep apnea, although results vary and benefits depend on nightly use.
Did you know?
• Many people with sleep apnea do not snore loudly or feel sleepy, especially women, who more often report insomnia, fatigue or morning headaches.
• Rheumatoid arthritis affecting the jaw joint can make the lower jaw smaller or set back over time, which narrows the airway.
• Gout attacks are more common at night, and falling oxygen during sleep is one proposed reason.
• Home sleep tests can diagnose many cases without an overnight stay in a sleep lab.
Helpful resources
• Sleep Education (American Academy of Sleep Medicine): plain-language guides to sleep apnea, CPAP and accredited sleep centers.
• MedlinePlus Sleep Apnea: trusted information on symptoms, testing and treatment.
• American Academy of Sleep Medicine: clinical guidelines and sleep center accreditation.
• Gout Education Society: gout triggers and related conditions.
At a glance
Topic
Lifestyle
Reviewed by Farhan Tahir, MD, FACR
Questions about your own care?
Book an in-person or telehealth consultation with Dr. Tahir.
For education only. Don’t start, stop or change a medicine without talking to your care team.
THE YOUTHFUL RHEUMATOLOGY BRIEF
Inflammation science, translated for you.
New studies, new treatments and practical living-well insights for autoimmune and inflammatory disease, explained in plain language by Dr. Tahir. About twice a month. Education only, never sales pitches.
Your privacy matters. We will never sell, rent or share your email or personal information. We use it only to send this newsletter, and you can unsubscribe anytime. Educational content only, not medical advice.