Quick answer: Use this guide for education and for preparing questions for your clinician. Sleep-apnea symptoms, diagnosis, PAP settings, and treatment decisions should be reviewed with a qualified healthcare professional.
Being diagnosed with sleep apnea can be overwhelming. There's a lot to consider, and many people wonder what it means for their health, well-being, and life expectancy. Even though having this sleep problem might seem scary, you should know that if you don't get it treated, it can have a lot of bad effects. It could even seriously cut down how long you might live.
This article explains the health risks associated with untreated sleep apnea, what mortality research can and cannot tell us, and how treatment fits into long-term care.
The Impact of Untreated Sleep Apnea on Life Expectancy
A 2021 review of 22 observational studies reported a pooled risk ratio of 1.74 for its all-cause sudden-death outcome in people with OSA. This is an association across study populations, not a prediction that an individual will lose a fixed number of years.
However, it's crucial to note that sleep apnea itself is rarely the direct cause of death. Instead, people with untreated sleep apnea are at increased risk of developing serious health conditions, such as cardiovascular disease, stroke, high blood pressure, and even diabetes, all of which can contribute to premature death.
Can Sleep Apnea Directly Cause Death?
Sleep apnea is associated with serious cardiovascular risks, including sudden death. A population study cannot determine how or when an individual might die; the claim that a person simply fails to restart breathing is not an established explanation for every apnea-related death.
Factors That Affect Life Expectancy with Sleep Apnea
Several factors contribute to how untreated sleep apnea impacts life expectancy. These include:
Type of Sleep Apnea
OSA involves upper-airway obstruction. CSA involves problems with the brain's control of breathing and may accompany conditions such as heart failure. Treatment depends on the type and contributing conditions.
A 2023 Veterans Health Administration study examined records from 1999–2020. Deaths were recorded in 25.1% of the CSA group and 14.9% of the OSA group during the study period. These were different clinical populations, and participants did not all receive 20 years of follow-up.
Severity of Sleep Apnea
In the Wisconsin Sleep Cohort, severe sleep-disordered breathing was associated with higher mortality. Excluding participants who reported CPAP use, the adjusted hazard ratio was 3.8 versus no sleep-disordered breathing (95% CI 1.6–9.0). This 2008 observational finding is not a universal 280% increase for every patient.
Underlying Health Conditions
Many people with sleep apnea also have other health conditions that can worsen the effects of sleep apnea. Common comorbidities include obesity, heart disease, diabetes, and hypertension, all of which increase the risks associated with sleep apnea.
The Health Risks of Untreated Sleep Apnea
Untreated sleep apnea can have a significant impact on your health. While the immediate effects may include excessive daytime sleepiness, mood changes, and cognitive impairment, the long-term risks are far more serious:
Cardiovascular Disease
Untreated sleep apnea is associated with heart and blood-vessel disease. The size of the association varies by population and other risk factors.
Stroke
Stroke is one of the health risks associated with untreated sleep apnea. Addressing blood pressure and other stroke risk factors remains important alongside sleep-apnea care.
Heart Disease
Heart failure and abnormal heart rhythms can coexist with sleep apnea. Existing heart disease affects both prognosis and the choice of therapy.
Diabetes
There is a strong connection between sleep apnea and Type 2 diabetes. Sleep apnea can contribute to insulin resistance, which makes it harder for the body to process glucose. This increases the risk of developing diabetes and related complications.
Obesity
Obesity can contribute to OSA by increasing tissue around the upper airway. Weight management may be part of treatment, but sleep apnea also occurs in people without obesity.
How CPAP Therapy Can Improve Life Expectancy
CPAP keeps the upper airway open and can reduce sleepiness and improve quality of life. Long-term mortality and cardiovascular outcomes depend on the population studied, treatment use and other health conditions.
A 2015 cohort study of older patients with moderate-to-severe OSA reported survival of 94.4% in the CPAP group and 78.4% in the untreated group over a mean follow-up of five years. The groups were not randomized, so these figures cannot predict everyone's benefit. In contrast, the SAVE randomized trial found no reduction in its cardiovascular-event outcome, while CPAP improved symptoms and quality of life. This is why treatment benefits should not be reduced to one universal survival percentage.
Alternative Treatments for Sleep Apnea
While CPAP therapy is the most effective treatment for sleep apnea, it's not the only option. There are several alternatives that may be suitable for people with mild to moderate sleep apnea or those who have difficulty adjusting to CPAP therapy:
Lifestyle Changes
Regular activity, weight support where appropriate, limiting alcohol, stopping smoking and side-sleeping may help. Discuss sedating medicines with the prescriber; do not stop prescribed medication independently.
Oral Appliance Therapy
Oral appliances, also known as mandibular advancement devices, are an alternative to CPAP for people with mild to moderate sleep apnea. These devices help keep the airway open by repositioning the jaw and tongue.
Other PAP Devices
APAP, bilevel PAP and adaptive servo-ventilation have different uses. A specialist selects them according to the diagnosis and other conditions; ASV is not simply an upgrade for more severe OSA.
Nerve Stimulators and Surgery
Surgery or nerve stimulation may suit selected patients after assessment of anatomy, apnea type and previous treatment. Eligibility is specific to the procedure or device.
What to do next
Seek assessment for suspected sleep apnea and follow up on treatment that is uncomfortable or ineffective. Consistent care can improve symptoms and daily functioning, while your clinician manages your individual health risks.
If someone's told you that you've got sleep apnea, don't feel too down or get all worked up about it. There are ways to treat it, and these treatments can really improve your situation a lot. Take control of your health today and talk to your doctor about the best treatment for you!
When to involve your care team
Contact your sleep clinician or equipment provider if symptoms continue, your mask leaks, treatment feels uncomfortable, or you are considering pressure or therapy changes. Do not use a blog post as a substitute for diagnosis or individualized medical advice.
Continue learning
Review the sleep-apnea library and the CPAP-therapy library for related education and practical questions to discuss with your care team.
