Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
sleep
Table of Contents
References & Edit History Related Topics
Images & Videos
Hear how scientists are studying the sleep-related brain activity of animals and migratory birds
Electroencephalogram
Why does jet lag happen?
Do we really swallow spiders in our sleep?
How biological clocks influence daily behavior
how poor sleep affects pain
Why sleep is so important
Why smartphones can disrupt sleep
adult polar bear and cub
For Students
adult polar bear and cub
sleep summary
Quizzes
greylag. Flock of Greylag geese during their winter migration at Bosque del Apache National Refugee, New Mexico. greylag goose (Anser anser)
Biology Bonanza
Related Questions
Read Next
Persian cat is sleeping
Why Do Cats Sleep So Much?
Irish Cobs in autumn pasture, horses
Why Do Horses Sleep Standing Up?
Hand washing. Healthcare worker washing hands in hospital sink under running water. contagious diseases wash hands, handwashing hygiene, virus, human health
17 Questions About Health and Wellness Answered
One day old human baby sleeping in a hospital. Newborn, dreaming, infant, napping sleep. reproductive system.
9 Fun Facts About Sleep
Discover
Martin Luther King, Jr.
Why We Celebrate MLK Day
A tornado in rural Iowa sweeps dangerously near a farm. Weather storm
Why Does the United States Have More Tornadoes than Any Other Country?
The Lost Colony of Roanoke, North Carolina, where 115 people mysteriously disappeared c. 1590. John White discovers the word Croatoan carved onto a tree upon his return to the deserted Roanoke Colony in 1590
The Lost Colony of Roanoke
Indian hijras participate in a religious procession in Gandhinagar, India, some 30 kilometers from Ahmedabad, on March 22, 2017. Hijra is a term used in South Asia which refers to transgender individuals who are born male. (gender identity, gender expression)
6 Cultures That Recognize More than Two Genders
jeans, denim, pants, clothing
Why Do We Say “A Pair of Pants”?
Malayan Leaf Frog - Megophrys nasuta
9 Animals That Look Like Leaves
Andrew Jackson delivering a speech while on his way to Washington, D.C., for his inauguration in 1829. From Harper's Weekly, 1881.
5 Remarkably Close U.S. Presidential Elections

sleep: Related Content

verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Share
Share to social media
URL
https://flowkick.top/facts/sleep
Written and fact-checked by
The Information Architects of Encyclopaedia Britannica

The Information Architects maintain a master list of the topics included in the corpus of  Encyclopædia Britannica, and create and manage the relationships between them.
The Information Architects of Encyclopaedia Britannica

Photos and Videos

Electroencephalogram
adult polar bear and cub
Hear how scientists are studying the sleep-related brain activity of animals and migratory birds
Why does jet lag happen?
Do we really swallow spiders in our sleep?
How biological clocks influence daily behavior
how poor sleep affects pain
See All Videos and Images →

Related Topics and References

Topics
Dig Deeper: More Articles That Discuss This Topic

Key People

Édouard Claparède
Swiss educator and psychologist

Related Quizzes and Features

Quiz
greylag. Flock of Greylag geese during their winter migration at Bosque del Apache National Refugee, New Mexico. greylag goose (Anser anser)
Biology Bonanza
List
Hand washing. Healthcare worker washing hands in hospital sink under running water. contagious diseases wash hands, handwashing hygiene, virus, human health
17 Questions About Health and Wellness Answered
Demystified
Irish Cobs in autumn pasture, horses
Why Do Horses Sleep Standing Up?
Persian cat is sleeping
Why Do Cats Sleep So Much?