What happens in your brain when you pull an all-nighter?
/"It has been known for many years that how sleepy we are, how well we can add up numbers, pay attention or conduct a working memory task depends on how long we have been awake and the time of day. Typically if we stay awake over a period of two days (a day, a night and then the next day) the first 16 hours or so is of wakefulness – performance is good and doesn’t change much."
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