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 ...
7.9M views1 week ago
MacBook Air Review
M4 MacBook Air Review After 2 Months – Still Apple's Best for 2025?
8:33
M4 MacBook Air Review After 2 Months – Still Apple's Best for 2025?
YouTubeMacRumors
117.1K views7 months ago
M4 MacBook Air REVIEW: Stunning Looks, Serious Performance
15:06
M4 MacBook Air REVIEW: Stunning Looks, Serious Performance
YouTubeGadgetMatch
147.2K views9 months ago
MacBook Air M4 - Real World Review (is it enough?)
9:52
MacBook Air M4 - Real World Review (is it enough?)
YouTubeThe Tech Chap
535K views8 months ago
Top videos
Cómo abrirse de piernas fácilmente
0:18
Cómo abrirse de piernas fácilmente
TikTokjuanfecastrob
9.8M viewsJun 6, 2023
What is Loan Amortization?
1:31
What is Loan Amortization?
YouTubeTata Capital
2.6M views2 weeks ago
Split de entrenamiento de fuerza, importa?
2:18
Split de entrenamiento de fuerza, importa?
TikTokadrianherrerocoach
11.6K views6 days ago
MacBook Air Tips and Tricks
M4 MacBook Air (2025) - First 24 Things To Do! (Tips & Tricks)
32:44
M4 MacBook Air (2025) - First 24 Things To Do! (Tips & Tricks)
YouTubeBrandon Butch
783.9K views8 months ago
M3 MacBook Air (2024) - First 23 Things To Do! (Tips & Tricks)
26:37
M3 MacBook Air (2024) - First 23 Things To Do! (Tips & Tricks)
YouTubeBrandon Butch
561.4K viewsMar 13, 2024
M4 MacBook Air - FIRST 20 Things To Do! | Setup & Customization
16:07
M4 MacBook Air - FIRST 20 Things To Do! | Setup & Customization
YouTubeGregsGadgets
442.5K views8 months ago
Cómo abrirse de piernas fácilmente
0:18
Cómo abrirse de piernas fácilmente
9.8M viewsJun 6, 2023
TikTokjuanfecastrob
What is Loan Amortization?
1:31
What is Loan Amortization?
2.6M views2 weeks ago
YouTubeTata Capital
Split de entrenamiento de fuerza, importa?
2:18
Split de entrenamiento de fuerza, importa?
11.6K views6 days ago
TikTokadrianherrerocoach
My Tongue Piercing Journey – A Baby Step!
0:06
My Tongue Piercing Journey – A Baby Step!
421.8K views1 week ago
TikTokglimzygirl
The process of splitting wood with a circular wood splitting stand
0:06
The process of splitting wood with a circular wood splitting stand
4.6M views4 weeks ago
YouTubeCraftsman Vision
30-Day Splits Challenge Progress Update - Left Leg Pain Relief
0:16
30-Day Splits Challenge Progress Update - Left Leg Pain Relief
6.6M viewsJan 1, 2023
TikTok30_days_progress
Split Tongue Beauty: Slowly But Surely Turning Into My True Self
0:05
Split Tongue Beauty: Slowly But Surely Turning Into My True Self
775.4K viewsMar 21, 2024
TikToknikkibitez
0:15
The 5 Moves That Open Your Middle Splits FAST 🔥 #flexibility #stretchin…
288.4K views2 weeks ago
YouTubeFlex with Olha
0:50
Homemade Split Pea Soup Recipe with Ham | Easy and Delicious
625.4K viewsApr 2, 2023
TikTokdownshiftology
1:06
Billionaire David Geffen Files for Divorce After 2 Years
132.5K views1 week ago
TikTokpinknews
1:23
Bharat Rasayan Sets Record Date for Stock Split & Bonus Issue | Ke…
172.4K views2 weeks ago
YouTubeKotak Securities
0:11
time to cut off my hair #brycewsly #damagedhair #splitends #hairtok …
245.6K views3 weeks ago
TikTokbrycesyora
2:33
Dr Nabiha Nikkah And Slip of tongue that's amazig now #Drnabiha #bre…
212.7K views4 weeks ago
TikToksaqibahmadraja
1:43
Healthy steak bagel bites Each one 57 calories 6.3g protein 2.17 g fat…
60.4K views1 week ago
TikTokcookingforgains
0:32
Split #yeat #edit #yeatedit #luhskeletn #fyp | yeat
126.6K views1 week ago
TikTokluhskeletn
0:14
I wish hyein and haerin nothing but the best but knowing the other 3 w…
189.7K views4 weeks ago
TikTokloonanextdoor
1:58
#duće #november #swimminginnovember #dalmatia …
92.3K views1 week ago
TikTokanita_split
2:45
Joe: Trump’s attacks on Marjorie Taylor Greene show “a fracturing …
43.9K views3 weeks ago
YouTubeMS NOW
2:08
Kandi it's finally falling for a divorce from Todd. I guess she has seen t…
96.2K views2 weeks ago
TikTokmzuniquecutz
See more videos
Static thumbnail place holder