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Not getting enough sleep may be less harmful to the brain than some have feared
Lysenko Andrii/Shutterstock
Everyone knows that going to bed too late can leave you less alert the next day. But recent claims have gone further, promoting the idea that regularly getting too little sleep raises the risk of Alzheimer’s disease and even shrinks the brain.
Now, this idea has been challenged by one of the most comprehensive analyses of brain scanning studies to date. So how much do we really need to worry about getting enough shut-eye?
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