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A comment on Total sleep deprivation impairs attention and higher-order cognitive processes. Parent comment

Re:Total sleep deprivation impairs attention and higher-orde... by rhinoceraptor on Friday November 29, 2019 @12:48PM (#21665748)
If there was an alternative to sleep, then that would be a huge evolutionary advantage.
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Re:Total sleep deprivation impairs attention and higher-orde... by matt4077 on Friday November 29, 2019 @01:07PM (#21665851)
Sleep could also just be a low-energy mode for times that are (used to be) unproductive, i. e. darkness.
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Re:Total sleep deprivation impairs attention and higher-orde... by bityard on Friday November 29, 2019 @02:44PM (#21666368)
The study in the linked article (and lots of others like it) begs to differ. If sleep was merely convenient rather the biologically necessary, our cognitive functions would not become severely hampered after only a few hours less sleep. Nor would people die after (medically) losing the ability to sleep after x number of days.

Further, if it were true, overweight people very likely wouldn't need to sleep at all.

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