Sleep apnea is one of the most common sleep disorders in Canada, and most people who have it do not know. It does not always feel like a breathing problem. It often shows up as exhaustion, morning headaches, or a partner nudging you awake because you stopped breathing. Understanding the symptoms is the first step toward getting diagnosed and, eventually, sleeping properly again.
What Is Sleep Apnea?
Sleep apnea is a condition where your airway repeatedly collapses or becomes blocked during sleep, causing your breathing to stop and restart throughout the night. Each interruption can last anywhere from a few seconds to over a minute. Your brain eventually forces you awake just enough to resume breathing, even if you do not remember waking up.
These interruptions fragment your sleep and reduce the oxygen your body receives overnight. Over time, untreated sleep apnea puts serious strain on your cardiovascular system and affects nearly every area of your health.
There are three main types. Obstructive sleep apnea (OSA) is by far the most common and occurs when the throat muscles relax and block the airway. Central sleep apnea is less common and involves the brain failing to send the right signals to the breathing muscles. Complex sleep apnea syndrome is a combination of both.
Common Sleep Apnea Symptoms
Sleep apnea does not always look the way people expect. Many assume the main symptom is loud snoring, but plenty of people snore without having sleep apnea, and some people with sleep apnea barely snore at all. The more reliable signs are what happens during the day.
The most common symptoms include:
- Loud, persistent snoring, often noticed by a partner
- Gasping, choking, or pausing while breathing during sleep
- Waking up with a dry mouth or sore throat
- Morning headaches that improve within a few hours of waking
- Excessive daytime sleepiness, even after a full night in bed
- Difficulty concentrating or remembering things
- Irritability, mood changes, or low motivation
- Waking frequently to urinate throughout the night
If you experience several of these consistently, it is worth speaking with a doctor. None of these symptoms on their own confirm sleep apnea, but together they build a clear picture.
Who Is Most at Risk?
Sleep apnea can affect anyone, including children. However, certain factors raise your risk considerably.
Excess weight is the most significant risk factor for obstructive sleep apnea. Fat deposits around the upper airway narrow the passage and make collapse more likely during sleep. Neck circumference is also a reliable predictor: a collar size above 17 inches in men or 15 inches in women is associated with higher risk.
Other common risk factors include being male, being over the age of 40, having a family history of sleep apnea, smoking, alcohol use, and nasal congestion. Postmenopausal women also experience a significant rise in risk, which is why sleep apnea is underdiagnosed in women overall.
How Sleep Apnea Is Diagnosed in Canada
A diagnosis requires a sleep study, also called a polysomnography. The study measures how many breathing interruptions you have per hour of sleep. This number is called the apnea-hypopnea index (AHI). An AHI between 5 and 14 indicates mild sleep apnea, 15 to 29 is moderate, and 30 or above is severe.
There are two ways to get a sleep study in Canada:
- In-lab sleep study: conducted at a sleep clinic overnight with technicians monitoring your breathing, oxygen levels, heart rate, and brain activity
- Home sleep test (HST): a portable device you wear at home that records breathing data overnight
Home sleep tests are now the most common starting point in Canada. They are more accessible, faster to arrange, and covered by most provincial health plans when referred by a physician.
What Happens After Diagnosis?
Once you have a diagnosis and a severity rating, your sleep specialist will prescribe a treatment. For the vast majority of Canadians with obstructive sleep apnea, that treatment is CPAP therapy. A CPAP machine delivers continuous pressurized air through a mask while you sleep, keeping the airway open and preventing the interruptions that are disrupting your sleep.
Your prescription will specify the machine type, the pressure settings, and whether you need a standard fixed-pressure CPAP or an auto-adjusting model. From there, you can purchase your equipment through an authorized Canadian retailer like PAPSmart.
Frequently Asked Questions
Can I have sleep apnea if I do not snore?
Yes. Snoring is common with sleep apnea, but not universal. Many people, particularly women, experience sleep apnea with minimal or no snoring. Daytime sleepiness and morning headaches are often more reliable indicators.
How do I get tested for sleep apnea in Canada?
Start with your family doctor. Describe your symptoms and ask for a referral to a sleep clinic. A home sleep test is typically the first step and is covered by most provincial health plans with a referral.
Is sleep apnea dangerous if left untreated?
Yes. Untreated sleep apnea is associated with high blood pressure, heart disease, stroke, type 2 diabetes, and a significantly higher risk of motor vehicle accidents due to daytime sleepiness. Treatment reduces these risks substantially.
Does sleep apnea go away on its own?
In some cases, losing weight reduces the severity of obstructive sleep apnea significantly. However, it rarely resolves entirely without treatment. CPAP therapy remains the most reliable and effective long-term solution for most people.
Can women have sleep apnea?
Absolutely. Sleep apnea is underdiagnosed in women because the symptoms often present differently, with more fatigue, insomnia, and mood changes rather than loud snoring. Postmenopausal women are at particularly elevated risk.
