Most people have had some kind of problems getting a good night's sleep or have experienced sleepiness during the day.
These problems may be caused by emotional distress (a divorce, a death in the family) and they can affect the performance on the job and the general quality of life.
In the latest report, researchers studied stroke risk in 5,422 participants aged 40 years and older without a history of stroke.
At the start of the study, participants performed a standard at-home sleep test, which determined whether they had sleep apnea and, if so, the severity of the sleep apnea.
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Other studies have also linked untreated sleep apnea with overweight and obesity and diabetes.
Researchers followed the participants for an average of about nine years.
They report that during the study, 193 participants had a stroke – 85 men (of 2,462 men enrolled) and 108 women (out of 2,960 enrolled).
Obstructive sleep apnea is associated with an increased risk of stroke in middle-aged and older adults, especially men, according to new results from a landmark study supported by the National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health.
Overall, sleep apnea more than doubles the risk of stroke in men.