CDC: 1 in 3 adults get enough sleep
Are You Getting Enough Sleep?
If you’re not getting enough sleep and find yourself waking up tired on a daily basis, you’re not alone. More than one-third of U.S. adults average less than 7 hours of sleep per night, according to a new report from the Centers for Disease Control and Prevention (CDC).
That lack of sleep is causing problems during the daytime, CDC surveys found. In one survey, 38% of people said they’d unintentionally dozed off during the day at least once in the previous month. Even more alarming, 5% said they’d nodded off or had actually fallen asleep while driving.
“If you don’t get enough sleep, it definitely impacts your functioning, your memory, response time. It definitely impacts your driving,” says Lela McKnight-Eily, PhD, one of the authors of the report and an epidemiologist and clinical psychologist with the CDC’s National Center for Chronic Disease Prevention and Heath Promotion.
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A second survey confirmed that too little sleep often leads to mental fuzziness. Nearly one-quarter of the people who reported getting less than 7 hours had difficulty concentrating during the day, and nearly one-fifth had trouble remembering things.
Sleeping less than 7 hours can interfere with everyday tasks, “lots of things you do every day and that you take for granted,” says Anne Wheaton, a postdoctoral research fellow at the CDC who co-authored the report.
Although sleep needs vary from person to person, most adults require 7 to 9 hours to feel rested, according to National Sleep Foundation guidelines cited by the CDC.
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But that sweet spot is harder to come by in this day and age. Between 1985 and 2009, the percentage of people who slept less than seven hours has shot up from 23% to 35%, a striking increase that the researchers say is due in part to workforce changes and new technology such as the smartphones and laptops that keep us connected at all hours.
Among the other notable findings in the report:
People over age 65 were more likely than younger adults to sleep 7 hours or more.
- Non-Hispanic whites (35%) were more likely than blacks (48%) to get at least 7 hours of sleep
- People with a high-school diploma tend to get more sleep than college-educated people
- When sleeping less than 7 hours, women are more likely than men to experience trouble with everyday activities
- Almost half (48%) of Americans snore
“We need to start seeing sleep as a central part of health. It isn’t a luxury,” McKnight-Eily says. “[Lack of sleep] can impact day-to-day function and mortality. If you get behind the wheel of a car and haven’t had adequate rest, you can have an accident.”
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Sleep disorders including insomnia, sleep apnea, and restless legs syndrome are common, McKnight-Eily adds. People who consistently feel poorly rested should consider seeing a sleep specialist to rule out a disorder, she says.
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