Sleeping too much or too little is associated with changes in the brain that are known to precede and increase the risk of stroke and dementia later in life, a new study suggests. In one of the largest neuroimaging studies of its kind, researchers at Yale School of Medicine (YSM) examined the brain images of...
Tag: <span>little sleep</span>
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Too little sleep in middle age linked to raised dementia risk
Credit: CC0 Public Domain Sleeping six hours or less per night in your 50s and 60s is associated with an increased risk of dementia, according to a new study of nearly 8,000 British adults followed for more than 25 years. Scientists said that while the research, which was based on data from a long-running survey, could...
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Too much or too little sleep bad for your brain
by Steven Reinberg, Healthday, Reporter (HealthDay)—Everyone needs sleep, but too little or too much of it might contribute to declines in thinking, a new study suggests. Too little sleep was defined as four or fewer hours a night, while too much was deemed 10 or more hours a night. The ideal amount? Seven hours a night. “Cognitive...