Two San people in Tsumkwe, Namibia, taken at the start of the study. Photo: Josh Davimes

Study of primitive tribes shows we're all still 'Paleo' sleepers

People in modern societies get about the same amount of sleep as those in pre-industrial communities in Africa and Latin America - who average a little less than 6.5 hours a night, and don't take naps - UCLA study finds

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Two San people in Tsumkwe, Namibia, taken at the start of the study. Photo: Josh Davimes
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