Weight-Loss Drugs Like Ozempic May Help Treat Sleep Apnea—Here's What New Research Shows

New research suggests that popular weight-loss medications like Ozempic and Zepbound may offer an unexpected benefit: they could help reduce sleep apnea severity in people with obesity and type 2 diabetes. A study published in JAMA Network Open analyzed medical records from over 93,000 people and found that those taking GLP-1 drugs were significantly less likely to need a continuous positive airway pressure (CPAP) machine to manage their condition.

What Are GLP-1 Drugs and How Do They Work?

GLP-1 drugs mimic a natural hormone called glucagon-like peptide-1, which helps your body control insulin and blood sugar levels. These medications also decrease appetite and slow how quickly your stomach empties after eating. The most well-known brands include semaglutide (sold as Ozempic for diabetes and Wegovy for weight loss) and tirzepatide (sold as Mounjaro for diabetes and Zepbound for weight loss).

Sleep apnea occurs when the muscles in the back of your throat relax during sleep, causing your airway to collapse. This interrupts your breathing repeatedly throughout the night, forcing you to wake up gasping for air. People with sleep apnea often snore loudly and experience daytime exhaustion because their sleep is so fragmented.

What Did the Study Find About Sleep Apnea and GLP-1 Drugs?

Researchers compared outcomes between patients taking GLP-1 drugs and those taking a different type of diabetes medication called sodium-glucose cotransporter-2 inhibitors (SGLT2Is). After an average follow-up period of nearly one year, the results were striking:

• CPAP Machine Need: People taking GLP-1 drugs were 8% less likely to require a CPAP machine to treat their sleep apnea
• Mortality Risk: They were 32% less likely to die from any cause during the study period
• Hospitalization Rate: They were 10% less likely to be hospitalized for any reason

The study included over 93,000 people with obesity, type 2 diabetes, and sleep apnea who had been prescribed a GLP-1 drug, making it one of the largest analyses of this medication class and sleep apnea outcomes.

How Do Weight-Loss Drugs Improve Sleep Apnea?

The primary mechanism appears to be weight loss. "When you have a lot of fatty tissue and it's pretty much everywhere, it narrows vessels and airways," explains Dr. Gary Wohlberg, director of Northwell Health's South Shore University Hospital Sleep Lab. "The airway becomes more collapsible." He notes that extra fatty tissue lines the airway itself, making it more prone to collapse when the muscles that normally hold it open relax during sleep.

By helping patients lose weight, GLP-1 drugs reduce the amount of fatty tissue pressing on the airway, making it less likely to collapse during sleep. However, researchers also suggest there may be additional metabolic or respiratory benefits beyond weight loss alone, though more research is needed to fully understand these mechanisms.

Tips for Managing Sleep Apnea Beyond Medication

While GLP-1 drugs show promise, experts emphasize that CPAP machines remain the first-line treatment for sleep apnea. However, several strategies can complement medical treatment:

• Sleep Position: Avoid sleeping flat on your back, which allows your jaw and tongue to drop back and block your airway. Instead, try sleeping propped up slightly or on your side to keep your airway more open
• Weight Management: Losing weight through diet, exercise, or medication can reduce fatty tissue around the airway and improve breathing during sleep
• CPAP Adherence: If prescribed a CPAP machine, use it consistently as directed, since it remains the most effective treatment for moderate to severe sleep apnea

"This study is supportive of what we're all experiencing" with GLP-1 drugs, Dr. Wohlberg said. "They're helping patients in a number of ways with health. Weight loss helps with diabetes. It may help in cardiac disease, and there's a possibility that there's a more direct effect on the airway. We still need to have CPAP as our first line, but this is supportive of what we're experiencing".

What Does This Mean for Sleep Apnea Patients?

The findings suggest that GLP-1 drugs could offer a dual benefit for people with obesity, type 2 diabetes, and sleep apnea: improved blood sugar control and weight loss, plus reduced sleep apnea severity. This is particularly encouraging for patients who struggle with CPAP machine tolerance, since about half of patients eventually stop using their masks due to discomfort or difficulty adjusting.

However, it's important to note that GLP-1 drugs are not a replacement for CPAP therapy in most cases. Rather, they may reduce the severity of sleep apnea and potentially decrease the need for CPAP in some patients. Anyone considering GLP-1 drugs or struggling with sleep apnea should discuss their options with their healthcare provider to determine the best treatment approach for their individual situation.