Too Much or Too Little Sleep Tied to Memory Problems in Older Women

Too Much or Too Little Sleep Tied to Memory Problems in Older Women

Seniors who slept too little or too much during midlife or after are at increased risk for memory problems, as are those whose sleep habits changed over time, a new study suggests.

Researchers looked at more than 15,000 women, 70 and older, who took part in a large study of health professionals. The women were depression- and stroke-free when they underwent their initial assessment.

Participants who slept five hours or less, or nine hours or more a day — either in midlife or later life — had worse memory than those who slept seven hours a day. The difference in memory was equivalent to nearly two extra years of age, the researchers said.

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