Sleep Apnea: Why Snoring Should Not Always Be Ignored
Many people assume that feeling tired is simply part of a busy lifestyle. In a fast paced city like Singapore, it is common for individuals to sleep late or wake up early because of work, family responsibilities, or digital distractions. However, persistent fatigue may sometimes be linked not just to how long we sleep, but to how well we breathe during sleep.
Sleep plays an essential role in both physical and mental recovery. During sleep, the brain processes information, regulates hormones, and supports memory and emotional balance. At the same time, the body repairs tissues and strengthens the immune system. When sleep quality is disrupted, individuals may experience daytime tiredness, reduced concentration, and lower energy levels.
One condition that can significantly affect sleep quality is sleep apnea.
What Is Sleep Apnea?
Sleep apnea is a condition where breathing repeatedly stops and starts during sleep. The most common form is obstructive sleep apnea, which occurs when the airway becomes partially or completely blocked while a person is asleep.
During sleep, the muscles in the throat relax. In some individuals, this relaxation causes the airway to narrow or collapse. When airflow is reduced or temporarily stopped, oxygen levels in the body may drop. The brain senses this change and briefly wakes the body to reopen the airway.
These awakenings are usually very short and the individual may not remember them. However, they can occur many times throughout the night and interrupt the natural sleep cycle. As a result, the body may not reach the deeper stages of sleep that are necessary for proper recovery.
Did You Know?
Can sleep apnea interrupt breathing many times during the night?
Yes. In individuals with obstructive sleep apnea, breathing may pause repeatedly during sleep. Each pause can briefly wake the brain so that breathing can resume.
These awakenings are often so short that the person may not remember them. However, they can occur many times during the night and prevent the body from reaching deeper stages of sleep that are important for recovery.
This is why someone with sleep apnea may spend several hours in bed but still wake up feeling tired the next day.
Often, it is a partner or family member who first notices the signs, such as loud snoring, pauses in breathing, or gasping during sleep.
Why Snoring Can Be a Warning Sign
Snoring occurs when airflow through the airway becomes partially restricted. As air passes through the narrowed airway, the tissues in the throat vibrate and produce the snoring sound.
Occasional snoring may occur during a cold, sinus congestion, or when sleeping on the back. However, persistent or loud snoring may indicate that the airway is consistently narrowed during sleep.
In some individuals, snoring may be associated with sleep apnea. Partners or family members may sometimes notice pauses in breathing, gasping, or choking sounds during the night.
Did You Know?
Is snoring always a sign of sleep apnea?
Not necessarily. Snoring is relatively common and can occur temporarily during a cold, sinus infection, or nasal congestion.
However, frequent or loud snoring may indicate that airflow through the airway is partially obstructed during sleep. When snoring is accompanied by symptoms such as pauses in breathing, choking sounds during sleep, or persistent daytime fatigue, further evaluation may be helpful.
Understanding the underlying cause of snoring is important, as it may sometimes be associated with sleep related breathing conditions such as obstructive sleep apnea.
Common Symptoms of Sleep Apnea
Sleep apnea often goes undetected because many symptoms occur during sleep. In some cases, a partner or family member may be the first to notice the signs.
Possible symptoms include:
- Loud or persistent snoring
- Pauses in breathing during sleep
- Choking or gasping sounds at night
- Waking up with dry mouth or sore throat
- Morning headaches
- Feeling tired despite a full night of sleep
- Daytime sleepiness or difficulty concentrating
Because these symptoms may develop gradually, they are sometimes overlooked or attributed to stress or lack of rest.
Why Untreated Sleep Apnea Can Affect Overall Health
When breathing is repeatedly interrupted during sleep, oxygen levels in the body may drop temporarily. At the same time, the brain must repeatedly wake the body to restore airflow.
Over time, this cycle prevents the body from entering deeper stages of sleep that support brain function and physical recovery.
Persistent sleep disruption may contribute to symptoms such as fatigue, mood changes, reduced concentration, and lower energy levels during the day. Research has also shown associations between untreated sleep apnea and certain health conditions, including high blood pressure and cardiovascular strain.
Who May Be More Susceptible?
Sleep apnea can affect individuals of different ages and body types. However, certain factors may increase the likelihood of airway obstruction during sleep.
These include:
- Age related changes in airway muscle tone
- Anatomical factors such as a narrow airway or enlarged tonsils
- Nasal blockage or chronic sinus congestion
- Increased tissue around the neck that narrows the airway
Understanding these contributing factors can help guide further evaluation.
How an ENT Specialist Can Help
An ENT specialist focuses on the upper airway, including the nose, nasal passages, throat, tonsils, and surrounding structures.
At Aglow ENT Centre, Dr Ker Liang evaluates patients for possible airway obstruction that may contribute to disrupted breathing during sleep. This may include examining the nasal passages, throat, and other structures that influence airflow.
Identifying whether nasal blockage, sinus issues, enlarged tonsils, or structural differences in the airway are present helps determine the most appropriate next steps for evaluation and management.
When Should You Seek Medical Advice?
It may be helpful to seek medical advice if certain symptoms occur consistently, such as loud snoring, pauses in breathing during sleep, or frequent waking with headaches or dry mouth.
Daytime fatigue, difficulty concentrating, or feeling unrefreshed despite sleeping for several hours may also indicate that sleep quality is being affected.
Early evaluation allows potential airway issues to be identified and addressed appropriately.
Hear Dr Ker Liang Share About Sleep Apnea on GOLD 90.5
Dr Ker Liang also recently shared on GOLD 90.5FM on 11 March 2026 about snoring and sleep apnea, including common symptoms such as loud snoring, choking or gasping during sleep, morning headaches, dry mouth, and persistent daytime tiredness.
The full conversation is available on Facebook.
Medical Disclaimer
This article is for general educational purposes only and does not constitute medical advice. Assessment, diagnosis, and management should be based on consultation with a qualified medical practitioner. Individual conditions and treatment suitability may vary.
