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HealthWatch: Studies Reveal U.S. Skimping On Sleep

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(Yoshikazu Tsuno/AFP/Getty Images)

(Yoshikazu Tsuno/AFP/Getty Images)

CBS SF Bay (con't)

Affordable Care Act Updates: CBSSanFrancisco.com/ACA

Health News & Information: CBSSanFrancisco.com/Health

ATLANTA (AP) – More than a third of U.S. adults sleep less than seven hours a night, and many of them report troubles concentrating, remembering and even driving.

The Centers for Disease Control and Prevention reported the statistics Thursday in two separate studies.

In one study, about 35 percent of people surveyed in 12 states said they slept less than seven hours a night, on average.

The second study based on a national survey found about 23 percent said they had trouble concentrating because they were tired. Another 18 percent struggled to remember things, and 11 percent had difficulty driving or commuting.

(© 2011 CBS Broadcasting Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)

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