A study of two African and one South American hunter-gatherer societies found that individuals generally woke at regular times, usually before dawn https://t.co/J9kD40KLRo
Another “modern medical” advice going to the bin: 8h monophasic sleep is an invention of industrial society. Natural Sleep and Its Seasonal Variations in Three Pre-industrial Societies: https://t.co/ljB6WPj7mx - Researchers traveled to remote corners o
RT @GJasienska: Hunter-gatherers don't sleep long https://t.co/Egal4Jdm9E
RT @GJasienska: Hunter-gatherers don't sleep long https://t.co/Egal4Jdm9E
Hunter-gatherers don't sleep long https://t.co/Egal4Jdm9E
@ZssBecker Love the pure feelings over facts fairy tale of pre historic humans. "Their only light source was the sun, so they slept whenever the sun was down and it was always 8 hours" They had fire and seasonal habits and lived brutally harsh lives. ht
Natural Sleep and Its Seasonal Variations in Three Pre-industrial Societies – Sleep durations of 5.7–7.1 hour – Difference of nearly 1 hr between summer and winter sleep – Onset occurring, on average, 3.3 hour after sunset. Awakening usually before sunrise
@DannyHatcher @AliAbdaal Here are most of the papers/podcasts I used. The Cell study on hunter-gatherer sleep patterns was especially interesting: https://t.co/Vxpegu6FSI As well as this broad overview: https://t.co/4vxeeNrinT https://t.co/EgzClDhUkf
@adamfurlong33 @MorePlausible @brandonwenerd @esaagar Here’s the study: https://t.co/QBaxSN3zH3
@jerryteixeira That seems unnatural. Melatonin production and environmental cues such as temperature change would probably be best during natural sleep times. IMO sleeping from 10-6 would be better than 7-3.
Modern sleep disorders could be treated by mimicking our ancestor's natural rhythms: - Sleep average of 5.7–7.1 hr - Sleep beginning about 3hrs after sunset - Maximal light exposure in the morning - Nap <7% of days (winter) and <22% of days (summ
RT @ShigekiKanamori: 【二相睡眠は赤道近辺の狩猟採集民族にはない】 産業革命以前の西洋は夜中の1時間程の中途覚醒で分割された二相睡眠だったがそれは緯度の関係での長い夜が原因かも 現代の赤道グループに二相睡眠は存在せずヒトが西ヨーロッパに移動する前にはおそ…
RT @kojija: 【睡眠の開始は気温の低下とともに】 赤道付近は季節をとおして昼夜ともに12時間 気温の低下する日没後3時間後に入眠 札幌の夜は、夏は8時間半、冬は15時間 夏は二相睡眠する時間がないですね この緯度では、冬は7時間寝たとしても、残りの8時間をどう…
RT @kojija: 【睡眠の開始は気温の低下とともに】 赤道付近は季節をとおして昼夜ともに12時間 気温の低下する日没後3時間後に入眠 札幌の夜は、夏は8時間半、冬は15時間 夏は二相睡眠する時間がないですね この緯度では、冬は7時間寝たとしても、残りの8時間をどう…
RT @kojija: 【睡眠の開始は気温の低下とともに】 赤道付近は季節をとおして昼夜ともに12時間 気温の低下する日没後3時間後に入眠 札幌の夜は、夏は8時間半、冬は15時間 夏は二相睡眠する時間がないですね この緯度では、冬は7時間寝たとしても、残りの8時間をどう…
【睡眠の開始は気温の低下とともに】 赤道付近は季節をとおして昼夜ともに12時間 気温の低下する日没後3時間後に入眠 札幌の夜は、夏は8時間半、冬は15時間 夏は二相睡眠する時間がないですね この緯度では、冬は7時間寝たとしても、残りの8時間をどう過ごしてたのか https://t.co/Fk1KrMp5Ob https://t.co/KqlJsj4g1D
RT @ShigekiKanamori: 【二相睡眠は赤道近辺の狩猟採集民族にはない】 産業革命以前の西洋は夜中の1時間程の中途覚醒で分割された二相睡眠だったがそれは緯度の関係での長い夜が原因かも 現代の赤道グループに二相睡眠は存在せずヒトが西ヨーロッパに移動する前にはおそ…
RT @ShigekiKanamori: 【二相睡眠は赤道近辺の狩猟採集民族にはない】 産業革命以前の西洋は夜中の1時間程の中途覚醒で分割された二相睡眠だったがそれは緯度の関係での長い夜が原因かも 現代の赤道グループに二相睡眠は存在せずヒトが西ヨーロッパに移動する前にはおそ…
【二相睡眠は赤道近辺の狩猟採集民族にはない】 産業革命以前の西洋は夜中の1時間程の中途覚醒で分割された二相睡眠だったがそれは緯度の関係での長い夜が原因かも 現代の赤道グループに二相睡眠は存在せずヒトが西ヨーロッパに移動する前にはおそらく存在しなかった https://t.co/TJ3KLn8xIh
Are you summer nap maxxing
Compiled a short thread of sleep in pre-industrial cultures below
@Romain70060587 @atomic_masss @911psyche Yes, maybe, in Europe. Early Europeans migrated from the equator to latitudes with much longer nights, which may have altered natural sleeping patterns. In 300,000 years, medieval times are still extremely recent. S
@crys_tom @CountFloyd2020 "Advanced sleep phase" syndrome - it is genetic, just like "delayed sleep phase" (night owl) syndrome. Most people have the more flexible "normal" sleep genetics. See https://t.co/B2Aj87Pq50
Members of modern hunter-gatherer societies, it turns out, don't sleep that much. #sleep https://t.co/A76wzKhgDT
RT @Grimhood: Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of th…
RT @Grimhood: Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of th…
RT @Grimhood: Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of th…
RT @Grimhood: Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of th…
Natural Sleep and Its Seasonal Variations in Three Pre-industrial Soci... https://t.co/8M1YT70VCp
RT @Grimhood: Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of th…
RT @Grimhood: Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of th…
RT @Grimhood: Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of th…
RT @Grimhood: Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of th…
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RT @ethnolectures: Je reviens un petit peu là-dessus, sans trop aller dans les détails parce que la fatigue, mais simplement l'abstract du…
Un autre aspect où ça se voit c'est que cette étude est une réponse à des études historiques qui ont mis en lumière (huhu) des patterns de sommeil différents dans les avatars passés de notre propre société, avant son industrialisation. Or, comme l'abstract
RT @ethnolectures: Je reviens un petit peu là-dessus, sans trop aller dans les détails parce que la fatigue, mais simplement l'abstract du…
RT @ethnolectures: Je reviens un petit peu là-dessus, sans trop aller dans les détails parce que la fatigue, mais simplement l'abstract du…
Je reviens un petit peu là-dessus, sans trop aller dans les détails parce que la fatigue, mais simplement l'abstract du deuxième article partagé est un bon exemple de comment y a des stereotypes qui persistent dans la recherche https://t.co/LSIlaNwS9n
@HydrePrever Néanmoins les recherches sur les populations indigènes ne semblent pas montrer de patern biphase : https://t.co/zSS31nwIT9 https://t.co/KrRinmGjGo
RT @Grimhood: Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of th…
RT @Grimhood: Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of th…
RT @Grimhood: Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of th…
Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/XT3L4etibS “Mimicking aspects of the natural environment might be effective in treating certain modern sleep disorders.” https://t.co/aXViiE2vPF
RT @alexeyguzey: @tessafyi Hunter-gatherers stay awake several hours after dawn and humans have had artificial light in the form of fire fo…
@muddletoes @vgr Let us know when you learn how to read. For the rest: "None of these groups began sleep near sunset, onset occurring, on average, 3.3 hr after sunset" (https://t.co/xXagm6fhUW, cited here: https://t.co/fKQNkAeNC5)
Hunter-gatherers had a life span of like 30 years
@tessafyi Hunter-gatherers stay awake several hours after dawn and humans have had artificial light in the form of fire for a very long time! “None of these groups began sleep near sunset, onset occurring, on average, 3.3 hr after sunset https://t.co/xXag
Interesting piece on natural sleep in pre-industrial societies. Sleep duration averaged ~6-7 hr... 🛌😴 #Sapiens https://t.co/bP30nMJ6cY
RT @BeattieL: Relatedly, is work on sleep patterns in other, pre-industrial societies, e.g. https://t.co/0EJjYM8mKu
RT @BillyBuffington: @visakanv Vasoconstriction is the mechanism by which your body warms at sleeps end. Linked paper is a fascinating stu…
@WilliamJK11 Ek het dieselfde vraag 'n ruk terug gehad. Ek het nie die antwoord nie, maar dit lyk of dit nie 'n moderne probleem is nie. https://t.co/X6R8N0pc9h https://t.co/FiEPbUj8ZZ
@IsabelA16278125 @mitokondriac Hay mucho mito en eso, las sociedades q viven actualmente como el Paleolitico se van a dormir unas 3h después de la puesta de Sol y cenan... Mira los patrones de comportamiento https://t.co/nN3TsCHj99
прикиньте, качество сна хуже не только без темноты, но и без охлаждения тела!! то-то у меня летом всегда режим летит к чертям https://t.co/WMhu2bqScg
Natural sleep and its seasonal variations in three pre-industrial societies https://t.co/N6PM9g8j07 no #biphasic
هل تعلم ان الناس الذين يعيشون بدون كهرباء ينامون بعد حلول الظلام بساعات قليلة ويصحون قبل الفجر. https://t.co/OxO9upcvnV
@j_louzao ¿Alguna forma de saber de dónde sale ese "sueño preindustrial", con un espacio a tientas por medio? Este estudio niega expresamente esa idea de "despertar de lavadora" que pareces proponer. - "was not interrupted by extended periods of waking" ht
Really enjoyed leading this week's small group seminar - a fascinating paper and commentaries which stimulated some lively discussion! https://t.co/NttGkul8BV
@nickengerer This study of pre-industrial sleep patterns suggests we may not have slept more before electricity, just differently - and also that it may have had as much to do with temperature as light (tho not so now) #sleep https://t.co/ivtcMKFy9m
専門家もいるほどだ。ところが今回の調査は、そういった仮説が事実ではないことを示している。 多くの狩猟採集民は6時間ぐらいの睡眠でも不眠にならず健康な暮らしをしている https://t.co/6CD9mQFToU 2008年の実験 24,000人の日本人を調べた 睡眠時間が6時間以下の女性は乳がんの発症率がはね上がっ
@visakanv Vasoconstriction is the mechanism by which your body warms at sleeps end. Linked paper is a fascinating study of 3 pre-industrial societies & their sleep habits. Perhaps most interesting: sleep onset/offset mirrored temperature more closely
@manucor_66 Uno de los que leí fue este, donde pone que dormían entre 6-7 horas de media https://t.co/zmcDhs9DCh
El #sueño está mas relacionado con los cambios de temperatura ambiental que la salida y puesta del sol. https://t.co/TjpJ7aDAUE
RT @hauserbua: @mnitabach @BatesPhysio UCLA’s Jerome Siegel compared sleep patterns in pre-industrial societies of Hadza, San and Tsimane.…
@mnitabach @BatesPhysio UCLA’s Jerome Siegel compared sleep patterns in pre-industrial societies of Hadza, San and Tsimane. They basically sleep like we do https://t.co/HNxcNX5QYM
@katebaumli IMO, modern humans neurotic about sleep. We overrate its importance and how much we need. Remote tribal societies (who live similarly to early humans) sleep slightly less than we do. source: https://t.co/j5NcNUHa5g (cont...)
@tednaiman @awe1546 @eatlikeanimals 2/ could you say more on that? they'd still have to retain a strong uncoupling capacity. Hadza (in Tanzania, bordering Kenya) evolved sleeping outside, uncovered in 14°C temps. you don't get through that without uncoup
Adults of tribal or pre-industrial societies "have lower levels of blood pressure and atherosclerosis and higher levels of physical fitness than industrial populations." Not surprising. They get to eat carbs all day and never have to watch a commercial. ht
RT @GandhiYetish: Most of us rely on an alarm clock to wake up at the same time every morning. Without any alarms, San, Tsimane, and Hadza…
RT @MartinOlalla_JM: Hunter/gather societies [Yetish et al. 2015] come handy. They are located in the tropical range. And they do not have…
RT @CharlestonCWKC: Natural Sleep and Its Seasonal Variations in Three Pre-industrial Societies: Current Biology http://t.co/uR8ddTtVXR
RT @CellPressNews: "Paleo" sleep? Sorry, pre-modern people's sleeping habits don't look so different from ours, now in @CurrentBiology: htt…
It has been a popular theory that pre-modern people had a different sleep pattern than us. A study of sleep in three preindustrial societies shows their sleep pattern is not substantially different (but maybe they sleep better than we do) [2015]. 💤 http
@juanpablogalind @MarioRobertoP Una comparación de tres sociedades preindustriales. https://t.co/WtPZmsiswW
RT @Nicolemendozac6: Melatonina, hormona que se activa en la oscuridad, cumpliendo la función de activar el sueño relentizando enfermedades…
RT @Nicolemendozac6: Melatonina, hormona que se activa en la oscuridad, cumpliendo la función de activar el sueño relentizando enfermedades…
RT @Nicolemendozac6: Melatonina, hormona que se activa en la oscuridad, cumpliendo la función de activar el sueño relentizando enfermedades…
Melatonina, hormona que se activa en la oscuridad, cumpliendo la función de activar el sueño relentizando enfermedades y envejecimiento. #cienciacomunica #fisiologia @Pcasbri Noticia: https://t.co/LSYnFf3SKy Article's🐾 *https://t.co/GimetsDTDh *https://t.c
“Se ha argumentado que la invención de la luz eléctrica, seguida por el desarrollo de la televisión, internet y las tecnologías relacionadas, junto con un mayor uso de cafeína, ha acortado considerablemente... https://t.co/zvdztZm5eD
RT @MuroiK1: 【論文】 原始的な生活を送る民族の睡眠パターンを調査。睡眠時間の平均は6.5時間程度で昼寝をする人はほとんどいなかった。慢性的な不眠症状を持つ人もほとんどいなかった。 https://t.co/vQFNVMfckP 人工的な明かりがなくても睡眠時間は…
【論文】 原始的な生活を送る民族の睡眠パターンを調査。睡眠時間の平均は6.5時間程度で昼寝をする人はほとんどいなかった。慢性的な不眠症状を持つ人もほとんどいなかった。 https://t.co/vQFNVMfckP 人工的な明かりがなくても睡眠時間は変わりなく、質が良いということでしょうか。
RT @ErichsenDaniel: Such an important paper. We are so focused on #light when it seems time of wake or temp regulate #circadian rhythms.…
RT @HiromasaFunato: この民族集団には「不眠」を意味する言葉がなかった。でも、睡眠について具体的に質問すると、2-3%の人が、習慣的に入眠困難や中途覚醒を自覚していた。 ーーーこの数字は、日本と比べるととても低い。健康睡眠族。 https://t.co/dI0…
@foraretaffel @joarguterstam Samlar och jägarfolk har inget mönster med att vakna under natten. Det är ovanligt https://t.co/KadH8ZWqRD
この民族集団には「不眠」を意味する言葉がなかった。でも、睡眠について具体的に質問すると、2-3%の人が、習慣的に入眠困難や中途覚醒を自覚していた。 ーーーこの数字は、日本と比べるととても低い。健康睡眠族。
電灯も冷暖房もない、文明化されていない3つの民族集団を調べたところ、睡眠時間は6-7時間。日没3時間後くらいに就寝して(季節によるが)日の出前に起きる。習慣的には昼寝しない。 ・・とても普通で健康的だ。 【Yetish Siegel et al, Curr Biol 2015】https://t.co/MTxm1cjT3k
Most of us rely on an alarm clock to wake up at the same time every morning. Without any alarms, San, Tsimane, and Hadza wake up at nearly the same time day-after-day. Yet, bedtime varies by several hours from night-to-night, even for the same person. http