Eye healthSleep

What happens to the eyes when a person is in REM sleep?

Jan, 20261:30 watch
LearnSleep healthWhat happens to the eyes when a person is in REM sleep?

What happens to the eyes when a person is in REM sleep?

00:00
-00:00

When you're dreaming, your eyes don't know you're asleep. Michael Timothy Smith, MA, PhD, director of the Behavioral Sleep Medicine Program at Johns Hopkins University, explains.

Up next

What happens to the eyes when a person is in REM sleep?
1:30 - NOW PLAYING

What happens to the eyes when a person is in REM sleep?

Jan 14, 2026

What are the functions of REM sleep?
0:51

What are the functions of REM sleep?

Jan 14, 2026

What happens to memory during sleep?
1:30

What happens to memory during sleep?

Jun 1, 2015

How important is light for sleep-wake cycles?
1:13

How important is light for sleep-wake cycles?

Jun 1, 2015

What is considered a good night's sleep?
0:43

What is considered a good night's sleep?

Jan 14, 2026

Why is sleep so important for the mind and body?
2:09

Why is sleep so important for the mind and body?

Jun 1, 2015

How many hours is considered enough sleep?
0:52

How many hours is considered enough sleep?

Jan 14, 2026

Why do so many people have trouble sleeping?
1:33

Why do so many people have trouble sleeping?

Jun 1, 2015

Can you catch up on sleep?
1:30

Can you catch up on sleep?

Jun 1, 2015

How does sleep affect chronic pain?
1:30

How does sleep affect chronic pain?

Jun 1, 2015

Does alcohol interfere with sleep?
0:49

Does alcohol interfere with sleep?

Jan 14, 2026

Recommended for you

What causes jet lag—plus 7 ways to avoid it
Article
Sleep medicine
Signs you should talk to a doctor about insomnia
Article
How to get over your afternoon slump
Article
Sleep medicine
Defining the different types of insomnia
Article
The scary truth about Halloween contacts
Article
AskMDHow can I be more consistent?
AskMd LogoAskMd Logo
Privacy policyConsumer health data privacyTerms of use
Cookie policyYour privacy choices

© 2026 Sharecare, Inc.