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Rona Rose
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An extra hour of sleep isn’t just a luxury — it can make a real impact on your physical and cognitive health. Going from 7.5 to 6.5 hours of sleep made participants in a recent study struggle on cognitive tests. Unfortunately, catching up on sleep over the weekend isn’t a solution: memories need to be moved from short- to long-term memory within 24 hours of of being formed before you run the risk of forgetting them. In addition, over 500 genes are affected by lack of sleep, and losing just one hour of sleep increased activity in genes linked to inflammation, immune response, stress response, and even risk of cancer. The good news: this gene activity reversed when participants added an hour of sleep back into their schedule. Do you get as much sleep as you need? Share this post with your friends and let us know in the comments. 

Read more about this study here: http://bbc.in/1cuO1nd
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