00:00For generations, hunter-gatherer societies have offered clues about natural sleep.
00:05Researchers studying the Hadza, Simain, and San found few reported sleep problems.
00:10That is, despite generally sleeping less and waking more than people in industrialized societies.
00:16One key factor is daytime light exposure.
00:18Bright light helps keep the body's circadian clock on track.
00:22Researchers also point to temperature.
00:24Hunter-gatherers often sleep as temperatures fall overnight.
00:27Relaxing evening routines may matter, too.
00:30After sunset, activities become quieter and less focused on work.
00:34Social connection is another important part of nighttime life.
00:37But researchers say perfect identical sleep every night may be unrealistic.
00:42Sleep naturally changes with seasons, temperature, and daily rhythms.
00:46The lesson may be to work with those natural signals.
00:49And to focus less on achieving a perfect eight hours every night.
00:52Disclosure.
00:53This video contains stock footage and content created or enhanced using AI-assisted tools.
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