If you’ve been keeping up with our blog, you know that we discussed that sleep apnea, previously thought to be just the men’s problem, actually affects women too. (For those of you lost and curious, here’s the link to our post: https://sleepbusiness.wordpress.com/2012/08/23/sleep-apnea-does-not-discriminate/) Well, it turns out that not only does sleep apnea occur in women, but it occurs in a whopping fifty percent of women too!
A new Swedish study of 400 women between the ages of twenty and seventy recently came out with its startling results. Funded by the Swedish Heart Lung Foundation, this study determined that half of the women had mild-to-severe sleep apnea. Four hundred women were chosen from a larger random population sample of 10,000 and were given overnight sleep tests. They answered a questionnaire and were monitored while they slept with sensors attached to their bodies. These sensors measured their heart rate, their eye and leg movements, their blood oxygen levels, their airflow, and even their brain waves. Needless to say, they were monitored very closely for more accurate results.
Researchers found that half of the women had mild-to-severe sleep apnea. In addition, half of the subjects experienced at least five episodes an hour of not breathing for longer than ten seconds, which is the minimum definition of sleep apnea. This disruption of breathing was then followed by a significant drop in blood oxygen levels. In the women who had hypertension or who were obese, researchers found that the numbers for sleep apnea were even higher—eighty to eighty-four percent! This is because hypertension and obesity are two known risk factors for sleep apnea.
It turns out that age also plays a role. The team found that sleep apnea is more common in older age groups. Of the women who were ages twenty to forty-four, one-fourth of them had sleep apnea. Fifty-six percent of women ages forty-five to fifty-four had sleep apnea. And of the women ages fifty-five to seventy, an alarming seventy-five percent of them had sleep apnea.
So what’s the point of all of these statistics? Why do we care? Well, we care because it’s been said that mild sleep apnea, although not as severe, does not go away—it just gets worse over time. So even though it may be mild and manageable now, it’s only bound to get worse. In addition, sleep apnea has been tied to greater consequences such as a higher risk of stroke, heart attack, and even early death. Not only that, but women who have sleep apnea are more likely to develop memory problems and even dementia than women who sleep soundly every night. So you see, it doesn’t just stop at a lack of sleep. No, so many more things, worse things, can come out of this.