New research among older adults with sleep apnea reveals that verbal memory performance is significantly worse in women—but not in men—who also have insomnia.
Dec 1, 2025
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Tai chi, a form of mind-body exercise widely practiced in Chinese communities, has similar benefits to talking therapy for middle aged and older people with chronic insomnia, finds a trial from Hong Kong published by The ...
Nov 26, 2025
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Australian researchers have found compelling evidence that insomnia may be linked to disruptions in the brain's natural 24-hour rhythm of mental activity, shedding light on why some people struggle to "switch off" at night.
Nov 26, 2025
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A study conducted by researchers at Saint Louis University found that people over 50 who suffer from both depression and insomnia are significantly more likely to develop Alzheimer's disease and related dementias.
Nov 19, 2025
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The likelihood of high blood pressure is clearly higher among people who have both sleep apnea and insomnia. This is shown by a study from the University of Gothenburg.
Nov 18, 2025
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Staring at the ceiling while the clock blinks 3am doesn't only sap energy for the next day. A large, long-running U.S. study of older adults has now linked chronic insomnia to changes inside the brain that set the stage for ...
Nov 16, 2025
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Long-term breast cancer survivors have a higher risk for developing depression, particularly if they have insomnia, according to a study published online Oct. 10 in SLEEPJ.
Nov 10, 2025
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Researchers at University of Tsukuba have found that people who have switched jobs are more likely to experience symptoms such as headaches, fatigue, and insomnia, based on the results of an internet survey conducted with ...
Oct 3, 2025
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One-third of our lives is spent sleeping, yet 30–40% of adults are reported to experience some form of insomnia. Japan in particular has the lowest sleep duration among the Organization for Economic Co-operation and Development ...
Sep 30, 2025
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People with chronic insomnia may experience faster declines in memory and thinking skills as they age—along with brain changes that can be seen on imaging scans—than people who do not have chronic insomnia, according ...
Sep 10, 2025
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Insomnia (or sleeplessness) is most often defined by an individual's report of sleeping difficulties. While the term is sometimes used in sleep literature to describe a disorder demonstrated by polysomnographic evidence of disturbed sleep, insomnia is often defined as a positive response to either of two questions: "Do you experience difficulty sleeping?" or "Do you have difficulty falling or staying asleep?"
Thus, insomnia is most often thought of as both a sign and a symptom that can accompany several sleep, medical, and psychiatric disorders, characterized by persistent difficulty falling asleep and/or staying asleep or sleep of poor quality. Insomnia is typically followed by functional impairment while awake. One definition of insomnia is difficulties initiating and/or maintaining sleep, or nonrestorative sleep, associated with impairments of daytime functioning or marked distress for more than 1 month."
Insomnia can be grouped into primary and secondary, or comorbid, insomnia. Primary insomnia is a sleep disorder not attributable to a medical, psychiatric, or environmental cause. A complete diagnosis will differentiate between:
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