Uh well what did you say about the weather?
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I found this Nat Geo article and I'm very surprised how recent it is:
You can see just how different the link is when you don't find it through the blue network
http://news.nationalgeographic.com/2015/10/20151015-paleo-sleep-time-hadza-san-tsimane-science/
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You know, I've been working on a response to this study. I suggest you check out this study too, which specifically compared how access to artificial light changed the sleep of two groups of hunter gatherers: http://jbr.sagepub.com/content/early/2015/06/17/0748730415590702.abstract
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@lorna Oh, that's interesting, I've read through some of that, to see the chart they gave. What struck me as odd with the study I linked -- there is no A/B. They don't test with lights, without lights, and it really didn't seem like it was all there, it just studied a group of people, there was no variable. Every group was a control. Thanks for posting the article, I really trust it.
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Yes, there were no melatonin levels reported, they didn't report time in bed, stuff like that you'd really expect to see in a study that's being promoted to the press as being about sleep and sleep quality. But there are interesting things things we can draw from their results. Like that it's different sleeping in a hut versus in the open air (uh-huh) and more interestingly, in wintertime, naps were 3x more likely.
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more interestingly, in wintertime, naps were 3x more likely.
Wow, where does this info come from?
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Pardon, I wrote that backwards: Napping occurred on <7% of days in winter and <22% of days in summer.
http://www.cell.com/current-biology/abstract/S0960-9822(15)01157-4
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@lorna Thanks, that's very interesting -- do you think it's because of the longer day length?
Also, I'll try not to nap a lot this winter!
