Thinking you have a sleep problem, even if you don't, may be just as bad for your overall well-being as actually having a sleep disorder, a new review published in Behaviour Research and Therapy suggests.
Kenneth L. Lichstein, PhD, a professor of psychology at the University of Alabama, reviewed 20 existing studies that looked at both how people described their own sleep and how researchers measured the quantity and quality of their sleep. In those studies, he found that 37 percent of participants who identified themselves as having insomnia were actually "normal" sleepers as defined by the respective study researchers.
That has consequences: he writes "perceived sleep disturbance poses a health risk, even when accompanied by good sleep." And according to Lichstein, those people are at a greater risk of things like fatigue, hypertension, self-stigma, depression, suicidal ideation and anxiety -- all because they think they're bad sleepers.
Or as Alex Fradera writes in a piece about the findings in the British Psychological Society research digest, "these 'complaining good sleepers' can have as high impairment in terms of daily fatigue, anxiety and depression as those suffering under a clinical deficit of sleep."
"Insomnia is a sleep disorder," Lichstein writes, "but it may also be a cognitive appraisal disorder." While there's a long history of discrepancies in self reported sleep and recorded sleep duration, Lichstein's review emphasizes the consequences for people who adopt an "insomniac identity."
Part of this identity may come from unrealistic sleep expectations and anxiety about sleep, he writes in the review, which can be predictive of actual sleep disorders. For instance, he notes that subjects "convinced that normal sleepers fall asleep in less than 10 minutes" might think their own need for 20 minutes to doze off must mean they're an insomniac. "For some, though the night problem exists only in their mind, it still degrades experience during both night and day," he writes.
Insomnia is defined by having difficulty falling asleep, returning to sleep or staying asleep, according to the National Sleep Foundation. It's a 24-hour disorder characterized by a "dreary quality of life," Lichstein writes in the review, as it throws you off the next day because it can result in anxiety, fatigue, drowsiness and difficulty learning or remembering.
Approximately 40 million Americans experience insomnia a year, according to the National Sleep Foundation. But as Lichstein points out, most people who have trouble sleeping don't see a doctor (hint: you should consider seeing a doctor if you have trouble sleeping), and when they do, "the diagnosis of insomnia is almost always initiated by the patient."
That means "people who adopt an insomnia identity account for virtually the entirety of the treated and untreated population of people with insomnia," he writes. That's complicated for many reasons, one being that those people could be getting the wrong treatment. "Between 36 to 39 percent of people treated for insomnia have been prescribed hypnotics and exposed to hypnotic side effects, when sleep was already good," he writes.
A more viable treatment option (and one that has already been in use) may be cognitive behavioral therapy specifically for insomnia, Lichstein notes in the review, which could help people who think they have insomnia reframe how they think about their sleep. "There may be many people out there suffering because of their insomnia identity rather than an actual lack of sleep."
By Shelby Lorman
Updated 25th November 2017
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