Obstructive Sleep Apnea (OSA) is a sleep breathing disorder in which a person stops breathing while they sleep. The tissues in the throat collapse, cutting off the airway despite efforts to breathe. Apnea is defined as "a cessation of airflow for 10 seconds or more." This can occur dozens and sometimes even hundreds of times an hour.
Typically, someone with sleep apnea snores heavily, and then stops breathing while still sleeping. A sleeping partner would observe that the person is struggling to breathe but there is no snoring sound. These periods of stopped breathing are followed by a gasping or choking sound. The person with sleep apnea will partially awaken in order to breathe, leading to fragmented, non-refreshing sleep which can be the cause of excessive daytime sleepiness.
The even greater concern is that when the airway collapses and oxygen is cut off, the body goes into a fight-or-flight response, putting a strain on the heart and increasing blood pressure. Over time, this can wear out the heart and lead to heart disease or a stroke.
Sleep Apnea Statistics
- 9% of middle-aged women and 25% of middle-aged men suffer from OSA.
- 1 in 5 adults has at least mild OSA.
- That translates to 18-25 million Americans (1 in every 15) living with sleep apnea.
- Possibly as few as 5% have been diagnosed, or have taken a sleep study.
- A person afflicted with untreated obstructive sleep apnea is up to 4 times more likely to have a stroke, as well as 3 times more likely to have heart disease.
- Approximately 50% of all patients who have hypertension, or high blood pressure, are also afflicted with obstructive sleep apnea.
- People suffering from OSA are as much as 6 times more likely to be involved in a car crash than those without sleep disorders. This is due to the fact that they are drowsy from lack of sleep.
Who is at Risk for Sleep Apnea?
Even though sleep apnea can affect anyone regardless of age, weight, and gender, these factors indicate a higher likelihood of having sleep apnea:
- Mouth breathing: Sleeping with the mouth open is a sign that the nasal airway is obstructed. Nasal obstruction causes the jaw to drop, reducing the diameter of the pharyngeal airway and increasing the likelihood of obstructive sleep apnea. If you know a sleeping mouth breather, they may be suffering from obstructive sleep apnea.
- Excess weight: Fat deposits around the neck and chin may obstruct your breathing. Keep in mind though, not everyone who has sleep apnea is overweight. Thin people suffer from OSA as well.
- Neck size (circumference): People with large neck circumferences tend to have narrowed airways as a result. Men with a 17 inch neck size and women with a 16 inch neck size are at higher risk. Another risk factor is excess skin from the chin to the neck, often referred to as a turkey neck.
- Family history: If you have family members who suffer from OSA or snoring, you may be at increased risk. There is a hereditary link associated with sleep apnea.
- Use of alcohol or other sedatives: These substances cause the muscles in your throat to relax, exacerbating sleep breathing issues such as OSA.
- Smoking: Smokers are three times more likely to suffer from OSA than their non-smoking counterparts. Smoking tends to cause inflammation and fluid retention in the airway, resulting in less space for air to pass through the airway.
- Being a male: Men are projected to be twice as likely to have sleep apnea. This gap narrows as age increases. Once women reach menopause, the ratio is almost equal.
- Age: OSA occurs significantly more often in adults that are older than 40.
- A narrowed airway: You may have a naturally narrowed airway. This is more common in women than in men, and could be a strong indicator of sleep apnea in women.
- Enlarged tonsils and/or adenoids: Your tonsils and/or adenoids may become enlarged, which lessens the amount of room for air to pass through your airway. In children, this is the most common cause of sleep apnea, in which removal is the most effective solution.
- Jaw structure: A lower jaw that is undersized compared to the upper jaw (retrognathia).
Often the person with sleep apnea is totally unaware of the problem and will often deny the fact that he / she snores, but the bed partner will observe:
- Loud snoring followed by cessation of breathing
- Gasping and choking during sleep
- Excessive daytime sleepiness
- Morning headaches
- More sleep apnea symptoms