Have you ever gone to a store or a restaurant where the music was so annoying that you walked right out? Now imagine what it must be like for the employees. In a new study, researchers found that when ...
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Verywell Health on MSNThe 4 Stages of Sleep: What Happens During Each CycleREM stages and one REM stage. Ideally, you repeatedly cycle through each stage. Learn how long each stage lasts.
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