Common Sleep Myths Compromise Good Sleep and Health

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Researchers from NYU School of Medicine reviewed more than 8,000 websites to identify the 20 most common assumptions about sleep. With a team of sleep medicine experts, they ranked them based on whether each could be dispelled as a myth or supported by scientific evidence, and on the harm that the myth could cause.

“Sleep is a vital part of life that affects our productivity, mood, and general health and well-being,” says study lead investigator, Rebecca Robbins, PhD, a postdoctoral research fellow in the Department of Population Health at NYU Langone Health. “Dispelling myths about sleep promotes healthier sleep habits which, in turn, promote overall better health.”

The claim by some people that they can get by on five hours of sleep was among the top myths researchers were able to dispel based on scientific evidence. They say this myth also poses the most serious risk to health from long-term sleep deficits. To avoid the effects of this falsehood and others identified in this study, such as the value of taking naps when you routinely have difficulty sleeping overnight, Robbins and her colleagues suggest creating a consistent sleep schedule and spending more time, at least seven hours, asleep.

Another common myth relates to snoring. And while Robbins says snoring can be harmless, it can also be a sign of sleep apnea, a potentially serious sleep disorder in which breathing starts and stops over the course of the night. The authors encourage patients not to dismiss loud snoring, but rather to see a doctor since this sleep behavior may lead to heart stoppages or other illnesses.

The study authors also found sufficient evidence in published studies that, despite beliefs to the contrary, drinking alcoholic beverages before bed is indeed unhealthy for sleep. According to experts, alcohol reduces the body’s ability to achieve deep sleep, which people need to function properly.

“Sleep is important to health, and there needs to be greater effort to inform the public regarding this important public health issue,” says study senior investigator Girardin Jean Louis, PhD, a professor in the departments of Population Health and Psychiatry at NYU Langone. “For example, by discussing sleep habits with their patients, doctors can help prevent sleep myths from increasing risks for heart disease, obesity, and diabetes.”

The researchers acknowledge that some myths still cause disagreement among sleep experts. For instance, although sleeping in on weekends does disrupt the natural circadian rhythm, for people in certain professions, such as shift workers, it may be better for them to sleep in than to get fewer hours of sleep overall. These discrepancies, they say, suggest that further research needs to be done.

In addition to Robbins and Jean-Louis, other study authors include Michael Grandner, University of Arizona College of Medicine; Orfeu M. Buxton, Pennsylvania State University; Lauren Hale, Stony Brook Medicine; Daniel J. Buysse and Sanjay R. Patel, University of Pittsburgh School of Medicine; Kristen Knutson, Northwestern University Feinberg School of Medicine; Wendy M. Troxel, RAND Coperation; Shawn Youngstedt, Arizona State University; and Charles Czeisler, Brigham and Women’s Hospital and Harvard Medical School.

Media Inquiries:
Jamie Liptack
212-404-4279
Jamie.liptack@nyulangone.org

SOURCE NYU Langone Health

Related Links

www.med.nyu.edu

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