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 views2 weeks ago
Centimetre to Inch
How to Read a Tape Measure (in Centimeters)
2:11
How to Read a Tape Measure (in Centimeters)
YouTubeABB Sewing Tutorial
8.6K viewsAug 13, 2023
know about centimetre inch and foot|mathematics measurement #viral #maths #education #shortvideo
0:59
know about centimetre inch and foot|mathematics measurement #viral #maths #education #shortvideo
YouTubeBasic Education India
728 views2 months ago
Conversion of length simplified mm, dm, m and cm #short
0:52
Conversion of length simplified mm, dm, m and cm #short
YouTubeStudy by Yourself PLUS
297 viewsFeb 14, 2021
Top videos
Only those who have bred dogs truly understand how difficult it is. When a puppy suddenly becomes stiff, there can be many causes. We can only hope it’s nothing life-threatening. #stiffPuppy #Rottweiler #WorkingDog #GuardDog #trending
1:00
Only those who have bred dogs truly understand how difficult it is. When a puppy suddenly becomes stiff, there can be many causes. We can only hope it’s nothing life-threatening. #stiffPuppy #Rottweiler #WorkingDog #GuardDog #trending
TikToklhk.petworld
2.2M views1 week ago
Self-Care Tips for Trans Men: Shaving and Grooming
0:59
Self-Care Tips for Trans Men: Shaving and Grooming
TikTokkjkameron
827.4K views2 weeks ago
mom how many pumps of blush should i do 🤓✌️ #fyp #viralditiktok #makeup #howmanypumps #blush #accuracy #ranking
2:04
mom how many pumps of blush should i do 🤓✌️ #fyp #viralditiktok #makeup #howmanypumps #blush #accuracy #ranking
TikToktop_ranking_1
823K views1 week ago
Centimetre Ruler
METRE INTO CENTIMETRE AND CM INTO MM. #trendingshorts #maths #shortsfeed #ytshorts #math
1:18
METRE INTO CENTIMETRE AND CM INTO MM. #trendingshorts #maths #shortsfeed #ytshorts #math
YouTubeAMIR SIR s.m.p.s
129 views2 months ago
Convert into metres and centimetres 😊👍
1:00
Convert into metres and centimetres 😊👍
YouTube@fun with study
235 viewsNov 30, 2024
What is 1 Unit square centimetre | Class 6 Mathematics #ncert #jkbose #class8maths
0:53
What is 1 Unit square centimetre | Class 6 Mathematics #ncert #jkbose #class8maths
YouTubeLEARN SRINAGAR
851 views4 months ago
Only those who have bred dogs truly understand how difficult it is. When a puppy suddenly becomes stiff, there can be many causes. We can only hope it’s nothing life-threatening. #stiffPuppy #Rottweiler #WorkingDog #GuardDog #trending
1:00
Only those who have bred dogs truly understand how difficult it is…
2.2M views1 week ago
TikToklhk.petworld
Self-Care Tips for Trans Men: Shaving and Grooming
0:59
Self-Care Tips for Trans Men: Shaving and Grooming
827.4K views2 weeks ago
TikTokkjkameron
mom how many pumps of blush should i do 🤓✌️ #fyp #viralditiktok #makeup #howmanypumps #blush #accuracy #ranking
2:04
mom how many pumps of blush should i do 🤓✌️ #fyp #viralditiktok …
823K views1 week ago
TikToktop_ranking_1
أغاني سبيستون: ذكريات الطفولة والمغامرة
1:01
أغاني سبيستون: ذكريات الطفولة والمغامرة
1M views1 week ago
TikTokabir.sag
Discover Texas' Best Drive-Through Lights: Lights of West
0:18
Discover Texas' Best Drive-Through Lights: Lights of West
775.5K views2 weeks ago
TikTokshelbynobles
Magnus Vs Gukesh - How far can you calculate? 🧐
0:54
Magnus Vs Gukesh - How far can you calculate? 🧐
307.1K views1 week ago
YouTubeGJ_Chess
Uncovering Hidden Stories in 18th Century Portraits
0:16
Uncovering Hidden Stories in 18th Century Portraits
540.9K views1 week ago
TikTokbyjacklynn
0:58
Luka Doncic's Three-Pointer Performance Against Suns
444.8K views1 week ago
TikTokslopper8
5:53
Best Performance by Krish & Kashor: Audition Highlights
243.3K views1 week ago
TikToksamar.amjad1
1:33
I expect Luke Johnson - Chairman of Gail’s Bakery - speaks for man…
168.7K views1 week ago
TikTokjeddwight
3:31
I showcased ALL of the REWARDS from the NEW Advent Calendar in …
99.3K views1 week ago
TikTokjeremayy
8:59
💾When you post a boyfriend on social media, people will assume you ha…
167.5K views1 week ago
TikTokemma_legrand_pioneer
2:41
#shedeur #second #Cleveland #sanders #nfl | shedeur sanders
39K views1 week ago
TikTokmediawelloff
1:13
ABP Ananda Headlines : 12:00 AM Headlines : এবিপি আনন্দ হে…
172.2K views1 week ago
YouTubeABP ANANDA
2:48
I have noticed this pattern with many of my sensory kids. Their fir…
115.9K views2 weeks ago
TikToktheweightedcape
4:04
Don't worry, we've got you covered! CONNECT & RECEIVE! We saw liv…
137.5K views1 week ago
TikTok1minutewithmajor1
0:46
How Many Influencers Can You Name In 30 Seconds? ⭐️ with @…
35.1K views1 week ago
TikTokhollywoodiq
2:24
Got an Australia Feb Intake Offer Letter? Don’t Rush — Read This F…
26.8K views6 days ago
TikToknmark.edu.np
12:36
This captivating movie is a must-watch and promises to make your …
85.4K views1 week ago
TikTokjptvmovies
See more videos
Static thumbnail place holder