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Human sleep isn't exceptionally short

Human sleep isn't exceptionally short

The threat of predators may have led humans to sleep less than tree-living primates. Yet, scientists point out that existing data about sleep in primates come from captive animals, who may sleep more because the animals are bored.

Having data from more wild animals would help sleep researchers although it is more challenging to do. If scientists had a clearer picture of primate sleep in the wild, it might turn out that human sleep isn’t as exceptionally short as it seems. 


166 reads


Humans need less sleep

Humans need less sleep

The San hunter-gatherers of Namibia have no electric lights or new Netflix releases that keep them awake. Yet, they don't sleep more than the typical Western city-dweller who stays up doom-scrolling on their smartphone.

  • Research shows that people in non-industrial soci...


223 reads

The human sleep paradox is the result of our evolutionary history

To learn about how ancient humans slept, anthropologists study contemporary non-industrial societies, such as the Hadza hunter-gatherers of Tanzania and various groups in Madagascar, Guatemala, and elsewhere. Sleep across all three groups averages around 5.7 - 7.1 hours, which is much les...


187 reads

Unsatisfied sleepers

How much we sleep is different from how much we wish we slept. Research from 2017 shows that out of 37 people, 35 said they slept just enough. On average, they slept about 6.25 hours a night. But they awoke frequently and needed more than 9 hours in bed to get those 6.25 hours.

By contrast,...


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