Sleep apnea severity is measurable and modifiable. The number of times your breathing pauses or becomes shallow per hour of sleep, called the apnea-hypopnea index (AHI), can drop significantly with the right combination of lifestyle changes, devices, and targeted therapies. Some of these approaches work best for mild cases, others for moderate to severe, and many complement each other.
Lose Weight for the Biggest Impact
Excess weight, particularly around the neck and throat, narrows the airway and increases the likelihood of collapse during sleep. Weight loss is the single most effective non-device intervention for reducing sleep apnea severity. A meta-analysis found that for every 1% of body weight lost, AHI drops by an average of 2.6%. That means a person who loses 20% of their body weight can expect roughly a 53% reduction in breathing disruptions during sleep.
The effect scales proportionally, so even modest weight loss helps. Dropping 10% of your body weight could cut your AHI by about 26%. For someone with moderate sleep apnea, that reduction could shift them into the mild category or, in some cases, resolve the condition entirely. The key is sustained weight loss rather than crash dieting, since regaining weight typically brings the apnea back.
Change Your Sleep Position
Gravity plays a direct role in airway collapse. When you sleep on your back, the tongue and soft tissues fall backward, and the airway narrows. For many people, AHI is at least twice as high while sleeping on their back compared to their side. The duration of each apnea event, the drop in blood oxygen, and the heart rate swings that follow are all more severe in the supine position.
Positional therapy, which simply means training yourself to sleep on your side, can be surprisingly effective for people whose apnea is position-dependent. The simplest method is the old tennis ball technique: attaching a tennis ball to the back of your sleep shirt so rolling onto your back becomes uncomfortable. More modern options include vibrating devices worn on the chest or neck that gently nudge you onto your side when they detect you’ve rolled over. Clinical trials show these approaches significantly reduce both AHI and the time spent sleeping face-up, with compliance rates that actually beat CPAP in some studies.
Positional therapy works best for people with mild to moderate sleep apnea that worsens in the supine position. If your sleep study showed similar AHI in all positions, this approach alone won’t be enough.
Strengthen Your Airway Muscles
The muscles in your tongue, soft palate, and throat help keep your airway open during sleep. When these muscles are weak or poorly toned, they’re more likely to collapse. Myofunctional therapy is a set of exercises that targets these muscles directly, and the results are meaningful: a meta-analysis of 10 studies found a 43% reduction in AHI, along with a small but statistically significant increase in blood oxygen levels during sleep.
The exercises themselves are straightforward. They typically involve pressing the tongue against the roof of the mouth, practicing specific swallowing patterns, and doing repetitive movements of the soft palate and facial muscles. Most protocols call for 15 to 30 minutes of daily practice. The exercises also reduce mouth breathing, which itself worsens airway collapse.
This approach has been studied most thoroughly in children and in adults with mild to moderate sleep apnea. It’s not a standalone solution for severe cases, but it pairs well with other treatments and has essentially no side effects.
Cut Back on Alcohol
Alcohol relaxes the muscles that hold your airway open, specifically the genioglossus, which is the main muscle controlling tongue position. As a central nervous system depressant with additional muscle relaxant effects, alcohol creates a double hit: it reduces your brain’s ability to detect and respond to airway obstruction while simultaneously making that obstruction more likely to happen.
Drinking in the evening, even moderate amounts, can worsen both the frequency and severity of apnea events that night. If you have sleep apnea, avoiding alcohol for at least three to four hours before bed is one of the simplest changes you can make. Sedative medications, including many over-the-counter sleep aids, work through similar mechanisms and carry the same risk.
Use CPAP Consistently
Continuous positive airway pressure remains the most effective treatment for moderate to severe sleep apnea. A CPAP machine delivers a steady stream of air through a mask, keeping your airway open mechanically. The challenge has never been whether it works, but whether people use it.
A large systematic review covering over 1.1 million participants found that consistent CPAP use reduced all-cause mortality by 37% and cardiovascular mortality by 55% compared to no treatment. These benefits increased the more hours people used their machines. That’s a striking reduction in the risk of heart attack, stroke, and early death, and it underscores why finding a mask and pressure setting you can tolerate is worth the effort.
If you’ve tried CPAP and abandoned it, the most common fixable problems are a poorly fitting mask, pressure that feels too high at the start of the night (which auto-adjusting machines can solve), and nasal congestion. A heated humidifier attachment eliminates the dry mouth and throat irritation that drive many people to give up.
Address Nasal Obstruction
A deviated septum or chronically swollen nasal passages can make breathing through your nose difficult, which forces mouth breathing and worsens airway collapse. However, fixing nasal obstruction alone typically does not cure sleep apnea. A randomized trial of septoplasty in sleep apnea patients found that only 15% experienced a meaningful AHI reduction, and just 4% saw their AHI normalize completely.
Where nasal surgery does help is in making CPAP tolerable. When nasal airflow improves, the pressure required to keep the airway open drops, and the mask feels less suffocating. If nasal obstruction is the reason you can’t use CPAP, treating it can be the key to unlocking the therapy that actually resolves your apnea. Nasal steroid sprays and internal nasal dilator strips are worth trying before considering surgery.
Nerve Stimulation for CPAP Failures
For people with moderate to severe sleep apnea who cannot tolerate CPAP, hypoglossal nerve stimulation is a surgical alternative. A small device implanted in the chest sends mild electrical signals to the nerve that controls the tongue, keeping it from falling back and blocking the airway during sleep. You turn it on with a remote before bed.
Long-term data show that people use the device about 5.7 to 6.1 hours per night, which is comparable to or better than typical CPAP adherence. Usage dips slightly after the first year but then stabilizes, suggesting people find a sustainable routine. The procedure requires surgery and is typically reserved for patients who meet specific criteria, including a BMI below a certain threshold and a particular pattern of airway collapse confirmed by a drug-induced sleep endoscopy.
Combining Approaches
Sleep apnea rarely has a single cause, and the most effective strategies often involve layering treatments. Someone who is overweight, sleeps on their back, and drinks alcohol in the evening has three modifiable contributors, and addressing all three will produce better results than tackling just one. Myofunctional exercises add benefit on top of positional therapy or CPAP. Weight loss can reduce the pressure settings needed on a CPAP machine, making it more comfortable and easier to use consistently.
The severity of your apnea matters when choosing your approach. Mild cases (AHI between 5 and 15) may respond fully to weight loss, positional therapy, and airway exercises. Moderate cases (15 to 30) typically benefit from combining lifestyle changes with CPAP or an oral appliance. Severe cases (above 30) almost always need CPAP or nerve stimulation as the foundation, with lifestyle changes layered on to maximize improvement and reduce the device burden over time.