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Naps may help if you are so sleepy that you can't focus in learning/training anymore. More importantly however, even a short sleep gives start for the memory consolidation process. So all the things you learned before the nap, get better shielded against the new conflicting or overlapping information in future. Especially in procedural learning (e.g. fingers ...


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It's probably more accurate to say that it's more difficult to fall asleep in the light because the circadian rhythm is directly regulated by ambient light. Our retinas contain a small amount of cells specialized for detecting ambient light levels, and these are directly connected to the brain center which controls the circadian rhythm. As our eyelids don't ...


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Does sleep deprivation cause mood swings? Few studies have focused on mood changes in healthy subjects following sleep deprivation. It seems that there is evidence for sleep deprivation causing mood changes on the subsequent day, but there is no evidence for or against it causing mood swings. Hart et al. (1987) found significantly higher self-reported ...



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