1. He said that before the industrial era, nobody slept 8 hours in one block. People slept in two parts: they went to bed after sunset, woke up around midnight, stayed awake for 1–2 hours, then went back to sleep. This “split sleep” was normal for thousands of years. But when factories appeared in the 19th century, society forced everyone into one long sleep window — and the body never fully adapted. He said the modern schedule confuses the brain: it doesn’t understand when it should rest and wh
0:05
TikTokkitija.ozo
1. He said that before the industrial era, nobody slept 8 hours in one block. People slept in two parts: they went to bed after sunset, woke up around midnight, stayed awake for 1–2
kitija.ozo(@kitija.ozo). original sound - kitija.ozo. 1. He said that before the industrial era, nobody slept 8 hours in one block. People slept in two parts: they went to bed after sunset, woke up around midnight, stayed awake for 1–2 hours, then went back to sleep. This “split sleep” was normal for thousands of years. But when factories ...
已浏览 790万 次1 周前
短视频
🔥 “Flair for the Dramatic” — Daring Midair Rescue in 9-1-1: Nashville#shorts
0:44
已浏览 2839.7万 次
🔥 “Flair for the Dramatic” — Daring Midair Rescue in 9-1-1: Nashville#shorts
Andrew
The process of splitting wood with a circular wood splitting stand
0:06
已浏览 463.7万 次
The process of splitting wood with a circular wood splitting stand
Craftsman Vision
Split Screen Examples
How to Split Screen on Windows 11 with Examples
2:54
How to Split Screen on Windows 11 with Examples
YouTubeWindowsChimp
已浏览 8.4万 次2022年2月25日
The Split Screen — The Ultimate Guide for Filmmakers
14:20
The Split Screen — The Ultimate Guide for Filmmakers
YouTubeStudioBinder
已浏览 16.3万 次2023年7月3日
How To Create A Basic Split Screen in Adobe Premiere Pro
2:52
How To Create A Basic Split Screen in Adobe Premiere Pro
YouTubeDerek Weber
已浏览 13.2万 次2020年6月9日
热门视频
Cómo abrirse de piernas fácilmente
0:18
Cómo abrirse de piernas fácilmente
TikTokjuanfecastrob
已浏览 980万 次2023年6月6日
What is Loan Amortization?
1:31
What is Loan Amortization?
YouTubeTata Capital
已浏览 257.2万 次2 周前
My Tongue Piercing Journey – A Baby Step!
0:06
My Tongue Piercing Journey – A Baby Step!
TikTokglimzygirl
已浏览 42.2万 次1 周前
Split Screen Effects
4 SPLIT SCREEN Effects in Premiere Pro CC (Tutorial)
6:25
4 SPLIT SCREEN Effects in Premiere Pro CC (Tutorial)
YouTubeEnam Alamin
已浏览 81.5万 次2021年11月9日
Create Dynamic Split Screen Video Effect in After Effects | Tutorial
6:30
Create Dynamic Split Screen Video Effect in After Effects | Tutorial
YouTubeSonduckFilm
已浏览 21.2万 次2021年5月31日
Make Powerful Split Screen Collages in After Effects
6:00
Make Powerful Split Screen Collages in After Effects
YouTubeSonduckFilm
已浏览 2.2万 次2024年12月9日
Cómo abrirse de piernas fácilmente
0:18
Cómo abrirse de piernas fácilmente
已浏览 980万 次2023年6月6日
TikTokjuanfecastrob
What is Loan Amortization?
1:31
What is Loan Amortization?
已浏览 257.2万 次2 周前
YouTubeTata Capital
My Tongue Piercing Journey – A Baby Step!
0:06
My Tongue Piercing Journey – A Baby Step!
已浏览 42.2万 次1 周前
TikTokglimzygirl
Split Tongue Beauty: Slowly But Surely Turning Into My True Self
0:05
Split Tongue Beauty: Slowly But Surely Turning Into My True Self
已浏览 77.5万 次2024年3月21日
TikToknikkibitez
30-Day Splits Challenge Progress Update - Left Leg Pain Relief
0:16
30-Day Splits Challenge Progress Update - Left Leg Pain Relief
已浏览 660万 次2023年1月1日
TikTok30_days_progress
The 5 Moves That Open Your Middle Splits FAST 🔥 #flexibility #stretching #shorts #yogapractice
0:15
The 5 Moves That Open Your Middle Splits FAST 🔥 #flexibility #stretchin…
已浏览 28.8万 次2 周前
YouTubeFlex with Olha
split challenge pt2
1:17
split challenge pt2
已浏览 110.4万 次2022年9月26日
YouTubeILayla°
1:06
Billionaire David Geffen Files for Divorce After 2 Years
已浏览 13.3万 次1 周前
TikTokpinknews
0:50
Homemade Split Pea Soup Recipe with Ham | Easy and Delicious
已浏览 62.5万 次2023年4月2日
TikTokdownshiftology
0:11
time to cut off my hair #brycewsly #damagedhair #splitends #hairtok …
已浏览 24.6万 次3 周前
TikTokbrycesyora
2:33
Dr Nabiha Nikkah And Slip of tongue that's amazig now #Drnabiha #bre…
已浏览 21.3万 次4 周前
TikToksaqibahmadraja
0:14
I wish hyein and haerin nothing but the best but knowing the other 3 w…
已浏览 19万 次4 周前
TikTokloonanextdoor
0:32
Split #yeat #edit #yeatedit #luhskeletn #fyp | yeat
已浏览 12.7万 次1 周前
TikTokluhskeletn
1:58
#duće #november #swimminginnovember #dalmatia …
已浏览 9.2万 次1 周前
TikTokanita_split
2:08
Kandi it's finally falling for a divorce from Todd. I guess she has seen t…
已浏览 9.6万 次2 周前
TikTokmzuniquecutz
0:20
I Installed a DIY AC Unit to Test the CHEAPEST Way to Cool Your Home
已浏览 2.1万 次3 周前
YouTubeAC Technician TEC
2:45
Joe: Trump’s attacks on Marjorie Taylor Greene show “a fracturing …
已浏览 4.4万 次3 周前
YouTubeMS NOW
0:13
The gay split, the 67 split, the let me syd split. I can do all kind of splits…
已浏览 8.4万 次3 周前
TikTokchoxpox
0:31
My Current 5 Day Workout Split for Muscle Growth 🦾
已浏览 1.9万 次1 周前
YouTubeIsiah Simon
观看更多视频
静态缩略图占位符

短视频

0:44
🔥 “Flair for the Dramatic” — Daring Midair Rescue in 9-…
已浏览 2839.7万 次2 周前
YouTubeAndrew
1:31
What is Loan Amortization?
已浏览 257.2万 次2 周前
YouTubeTata Capital
0:06
The process of splitting wood with a circular wood …
已浏览 463.7万 次4 周前
YouTubeCraftsman Vision
0:05
Split Tongue Beauty: Slowly But Surely Turning Into My …
已浏览 77.5万 次2024年3月21日
TikToknikkibitez
0:16
30-Day Splits Challenge Progress Update - Left Leg …
已浏览 660万 次2023年1月1日
TikTok30_days_progress
0:18
Cómo abrirse de piernas fácilmente
已浏览 980万 次2023年6月6日
TikTokjuanfecastrob
2:57
MILKLARD GYM TIME !!! My split is getting messed up t…
已浏览 3951 次2 周前
TikTokmilklard
0:15
The 5 Moves That Open Your Middle Splits FAST 🔥 #flexibi…
已浏览 28.8万 次2 周前
YouTubeFlex with Olha
0:32
My training split: lifting running. Right now I’m in …
已浏览 1.5万 次1 周前
TikTokjorggonzo
1:17
split challenge pt2
已浏览 110.4万 次2022年9月26日
YouTubeILayla°
0:53
Grad Split (@grad_split)’s videos with original sound …
已浏览 2.4万 次2 周前
TikTokgrad_split
1:06
Billionaire David Geffen Files for Divorce After 2 Years
已浏览 13.3万 次1 周前
TikTokpinknews
0:53
DIY Flare Split AC Installation!
已浏览 2.8万 次3 周前
YouTubeAC Technician TEC
0:50
Homemade Split Pea Soup Recipe with Ham | Easy an…
已浏览 62.5万 次2023年4月2日
TikTokdownshiftology
0:13
CLAUDIA DEAN WORLD on TikTok
已浏览 150万 次2023年4月5日
TikTokclaudiadeanworld
1:12
😢DIVORCED MOM😢DAY IN THE LIFE FALL 2025✨ #momlif…
已浏览 25.2万 次4 周前
YouTubeMai Zimmy
0:11
time to cut off my hair #brycewsly #damagedhair …
已浏览 24.6万 次3 周前
TikTokbrycesyora
2:33
Dr Nabiha Nikkah And Slip of tongue that's amazig now #…
已浏览 21.3万 次4 周前
TikToksaqibahmadraja
0:14
I wish hyein and haerin nothing but the best but kn…
已浏览 19万 次4 周前
TikTokloonanextdoor
2:08
Kandi it's finally falling for a divorce from Todd. I guess …
已浏览 9.6万 次2 周前
TikTokmzuniquecutz
静态缩略图占位符