Is My Snoring Sleep Apnea? | ENT Gangnam Seoul

Snoring and sleep apnea are related but not the same

Snoring is noise from vibrating throat tissues as air flows through a partly narrowed airway. Obstructive sleep apnea (OSA) is when that airway repeatedly narrows so much that breathing slows or stops for ten seconds or more, oxygen levels drop, and the brain briefly wakes you to reopen the airway. Most people with OSA snore, but many people who snore do not have OSA.

Warning signs that suggest sleep apnea

Pauses in breathing, gasping, or choking noticed by a partner
Very loud snoring that is present most nights
Waking unrefreshed even after a full night
Daytime sleepiness, falling asleep in meetings, on the subway, or while driving
Morning headaches or a dry mouth on waking
Waking frequently to urinate at night
Poor concentration, irritability, or low mood
High blood pressure that is difficult to control

Risk factors include excess weight, a large neck size, male sex, increasing age, alcohol before bed, a recessed jaw, large tonsils, and nasal obstruction.

Questions to ask your bed partner

Because you are asleep, your partner or roommate is often the most reliable witness. Ask whether your snoring is loud enough to hear through a closed door, whether it stops suddenly and restarts with a snort, and whether it is worse on your back or after drinking. A short phone recording of a typical night is useful to bring to your appointment.

Why it matters

Untreated moderate to severe OSA is associated with hypertension, heart rhythm problems, stroke, metabolic disease, and a higher risk of drowsy driving accidents. Simple snoring is mainly a social problem, while OSA is a medical one.

How sleep apnea is diagnosed

The reference test is polysomnography, an overnight sleep study that records breathing, oxygen levels, brain activity, and body position. The result is reported as the apnea-hypopnea index (AHI), the number of breathing events per hour, which classifies OSA as mild, moderate, or severe.

What we do at Gangnam Yonsei ENT

Dr. Kim Yoo Suk, a former university professor who has published on five-year outcomes of sleep apnea surgery and heart rate variability in OSA, approaches snoring as an airway mapping problem. The clinic's evaluation, as described in its sleep program, can include:

Nasal endoscopy to check the septum, turbinates, adenoids, and throat
Cephalogram to assess jaw position and airway space
CT when nasal or sinus disease is suspected
Polysomnography to confirm and grade OSA

Treatment depends on severity and where the airway narrows. Options include lifestyle changes such as weight loss and side sleeping, CPAP or an oral appliance, and surgery to correct nasal obstruction or reduce throat tissue when appropriate.

When to seek help

If you feel sleepy while driving, stop driving drowsy and arrange an evaluation soon. Consultations are in English at our clinic near Gangnam-gu Office Station; see our location and hours. You may also find sleep apnea treatment without CPAP and why snoring worsens in winter helpful.

Can thin people have sleep apnea?

Yes. Weight is a major risk factor, but jaw shape, a narrow airway, large tonsils, nasal obstruction, and age all play a role. Thin people with typical symptoms such as breathing pauses and daytime sleepiness should still be evaluated.

Is a smartphone snoring app enough to diagnose sleep apnea?

No. Apps can record snoring sounds and may hint at irregular breathing, but they cannot measure oxygen levels or airflow accurately. A formal sleep study is needed to confirm sleep apnea and determine its severity.

Can fixing my nose cure sleep apnea?

Nasal surgery alone rarely cures moderate or severe sleep apnea, but improving nasal breathing can reduce snoring, improve sleep quality, and make CPAP more comfortable to use. It is often one part of a broader treatment plan.

Gangnam Yonsei ENT Clinic

Is My Snoring a Sign of Sleep Apnea? An ENT in Gangnam, Seoul Explains