It used to be that if someone told you you snored, you shrugged it off as more of an annoyance to them than anything telling about your own health and wellbeing.


Today, we have a greater understanding of at least one potential risk of being a frequent snorer: You could have sleep apnea[1] , a potentially harmful sleep disorder during which people stop breathing, sometimes hundreds of times a night.


Obstructive sleep apnea (OSA) is the most common type of sleep apnea, and occurs when the muscles in the back of the throat collapse, causing the opening through which air passes to disappear. (Watch this video for an in-depth explanation of what happens during OSA[2] .)


But certain people are more likely to experience this interruption of breathing than others. We asked Dr. Matthew Mingrone, lead physician for EOS Sleep Centers[3] in California specializing in sleep apnea and snoring issues, to help explain why.


Obesity

Likely the most indicative risk factor is carrying too much extra weight. Obese adults are seven times more likely to develop OSA[4] than their normal-weight peers, according to WebMD. OSA is essentially a blockage of the upper airway, says Mingrone. Part of the tissue running from the nose to the voicebox collapses, cutting off the passage of oxygen. Excess weight adds to the pressure on tube, he says, making the diameter of the opening even smaller than it already is.


Neck Circumference

neck circumference sleep apnea

Obese people aren't the only demographic with larger-than-average necks. Consider the muscular build of professional athletes, for example, who aren't obese but thanks to muscle development are larger than us mere mortals.


Men with a neck circumference greater than 17 inches[5] and women over 15 inches have a higher risk of OSA, WebMD reported.


Age

People of any age can develop sleep apnea, but the condition is more common the older you get[6] , according to the National Heart Lung and Blood Institute. "As we get older, we lose tone and elasticity as part of the normal aging process," says Mingrone. With that natural softening of the tissue in the throat, there's higher likelihood of collapse, he says.


Family History

It's not that you have a genetic predisposition to developing sleep apnea, says Mingrone, like a specific type of cancer that may run in families. Instead, it's likely that you've inherited certain aspects of your physical makeup that increase sleep apnea risk, he says. If Mom's being treated for sleep apnea and you've inherited her narrow jaw, you may have a similar doctor's visit in your future.


Alcohol Use

sleep apnea alcohol

Because it's a muscle relaxant, alcohol too close to bedtime can lead to episodes of apnea, says Mingrone, even in someone who doesn't have OSA. And in those with the disorder, alcohol can lengthen the duration of apnea episodes[7] , according to the National Institute on Alcohol Abuse and Alcoholism.


Race

Studies show that both sleep apnea risk[8] and sleep apnea severity[9] vary by race. It may be due to anatomical differences in the airways of different ethnic groups, according to Mingrone.


Smoking

sleep apnea smoking

Current smokers are 2.5 times more likely to have OSA[10] than smokers and nonsmokers combined, according to a 2001 study. "Smoking most airway tissue swell because it's an irritant," says Mingrone. Swelling in the nose and the throat further reduces the space for air to flow through.


Gender

Middle-aged men are twice as likely to have OSA than women[11] of the same age, according to the American Lung Association. Mingrone says in his practice, about 15 to 20 percent of patients are female. The variance may be due again to anatomical differences, especially since men are simply bigger than women more often than not.



Also on HuffPost:




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  • Sleep Apnea Increases Risk Of Heart Attack


    The sleep disorder has a number of poor effects on the heart. "It's as if somebody's choking you, so your heart rate goes up, your blood pressure goes up," Charles Czeisler, M.D., the Baldino Professor of Sleep Medicine at Harvard Medical School told <em>Health</em> magazine. "Over time, even your daytime blood pressure is higher." Sleep apnea may be responsible for a third of all cases of <a href="http://www.huffingtonpost.com/2012/03/14/sleep-health_n_1310353.html">high blood pressure</a> in Americans, he told the magazine. A 2007 study showed just how serious these cardiovascular effects of sleep apnea are. The research found that people with sleep apnea were <a href="http://www.sciencedaily.com/releases/2007/05/070520183533.htm">30 percent more likely to have a heart attack</a> or die of any cause over a four to five year period.




  • Sleep Apnea May Increase Depression Risk


    The under diagnosed sleep condition takes a <a href="http://www.huffingtonpost.com/2012/03/30/sleep-apnea-depression-risk_n_1391707.html">serious toll on the mood</a>, according to March research from the CDC. In fact, men with sleep apnea were more than twice as likely and women more than five times as likely to feel hopeless, lose interest in their regular activites and display other signs of clinical depression, Health.com reported. Snoring did not seem to be associated with depression. Luckily, the very same <a href="http://www.huffingtonpost.com/2012/06/15/sleep-apnea-treatment-depression-cpap_n_1597703.html">treatment for sleep apnea may also ease depression</a>, according to Cleveland Clinic research.




  • Sleep Apnea May Be A Risk Factor For Diabetes


    There is a growing body of research supporting a link between the presence of sleep apnea and <a href="http://www.huffingtonpost.com/2012/05/24/sleep-apnea-diabetes-type-2-_n_1539933.html">metabolic disorders like diabetes</a>, HuffPost reported in May. Both moderate and severe obstructive sleep apnea were found to be predictors of the disease. A previous study found that people with sleep apnea had more than <a href="http://news.yale.edu/2007/05/24/sleep-apnea-increases-risk-heart-attack-and-diabetes">double the risk of developing diabetes</a>.




  • Sleep Apnea May Increase Cancer Risk


    Not only do people with sleep apnea have a <a href="http://well.blogs.nytimes.com/2012/05/20/sleep-apnea-tied-to-increased-cancer-risk/">higher risk of developing cancer</a>, but they also have a higher risk of dying from the disease, the <em>New York Times</em> reported. Two studies in May examined this link. One found people with sleep apnea had a 65 percent higher change of developing any kind of cancer. The second found that disordered breathing contributed to a five-times higher rate of dying from the disease.




  • Sleep Apnea May Sap Your Libido


    Excessive sleepiness is certainly enough to kill the mood, but research suggests that sleep apnea in particular has an effect on sexual function in both men and women. It may <a href="http://well.blogs.nytimes.com/2011/10/10/really-the-claim-sleep-apnea-causes-sexual-problems/">drive down sex hormones</a> like testosterone in a way that can extinguish the flame for women and cause erectile dysfunction in men, according to the <em>New York Times</em>. And while the typical treatment -- a CPAP machine -- is not exactly an aphrodisiac, Dr. Michael J. Breus writes, it can help not only with sleep apnea, but <a href="http://www.huffingtonpost.com/dr-michael-j-breus/sleep-apnea_b_1661687.html">with the sexual side effects as well</a>.




  • Sleep Apnea May Increase Stroke Risk


    Researchers have long studied the link between the sleep disorder and the risk of stroke, but a small recent study found that 51 of 56 stroke patients evaluated -- or <a href="http://www.huffingtonpost.com/dr-michael-j-breus/sleep-apnea_b_1342311.html">91 percent of patients</a> -- had sleep apnea, Dr. Michael J. Breus wrote for HuffPost. More research is still needed to determine just what role disrupted breathing plays in this elevated risk.




  • Sleep Apnea Increases Accident Risk


    It's not rocket science -- excessive sleepiness during the day leads to sleepier drivers who are at a higher risk of crashing. But a 2008 study found that people with sleep apnea have double the risk of being in a car accident and are <a href="http://www.sciencedaily.com/releases/2008/02/080218214401.htm">three to five times more likely to be in a serious crash</a>. The study was the first to examine the severity of car crashes among people with sleep apnea, and found that even mild disordered breathing was linked to increased risk.




  • Sleep Apnea Is Linked To Pregnancy Complications


    Granted, Perry doesn't have to worry about this particular concern. While sleep apnea is often perceived as a problem predominately for men, <a href="http://www.huffingtonpost.com/2012/08/16/sleep-apnea-in-women-may-_n_1779127.html">women are not immune</a>. And, in fact, sleep apnea presents unique complications for women. A recent study found that women with sleep apnea were more likely to develop high blood pressure during their pregnancies, to require a C-section birth and their babies were more <a href="http://www.huffingtonpost.com/2012/09/21/sleep-apnea-in-pregnancy-_n_1903534.html">likely to be admitted to the neonatal intensive care unit</a>.




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