The Surprising Reason Why You Talk in Your Sleep

by Moin Uddin Ahmed Tipu

Some of us sleep soundly without uttering a whisper; others deliver entire speeches while sawing their logs. But why is that…and how does sleep talking affect our health?
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Many people think of sleep as the brain shutting off. Curtains. Lights out. But our brains are actually quite active during slumber. Throughout the night, we cycle through two types of sleep: Rapid Eye Movement, or REM, and non-REM, which has three stages. As we move through each stage, our brain waves progressively fall into lower frequencies and higher amplitudes until we reach deep, slow-wave sleep at stage 3.

Sleep talk can happen at any point during what scientists call “transitory arousal”, which is when a sleeper becomes half awake while transitioning from one stage to the next. Interestingly, the quality of our speech here decreases as we move closer toward stage 3. After stage 3 we enter REM sleep. This is when our eyes rapidly move behind closed lids and our brain activity becomes closer to how it is when we’re awake.

There are two different structures in the brain that control when we’re awake and when we’re asleep, sort of like a light switch. One is the Reticular Activating System, or RAS, a complex network of neurons located in the brain stem. It releases chemical messengers called neurotransmitters that promote wakefulness and help regulate our sleep-wake cycles. The other system, the Ventrolateral Preoptic Nucleus, or VLPO, is located in the hypothalamus. It releases neurotransmitters that bring on sleep by suppressing neural activity to the RAS. During REM, the VLPO structure releases powerful neurotransmitters that work together to inhibit motor neurons and prevent you from acting out your dreams of flying.

#science #seeker #REM #sleep #health

Read More:

Is There a Link Between Sleepwalking, Sleep Talking, and Mental Health?

“Both sleepwalking and sleep talking can happen for many reasons. Sometimes they are symptoms of a mental health condition, and both may cause psychological distress and interfere with relationships, work, and even overall life satisfaction.”

Why Do People Talk in Their Sleep?

“The things people say depend heavily on what sleep stage they’re in. Barrett describes a gradual progression during the four stages of non-REM sleep that goes from primarily mumbling sounds and simple words in the deepest sleep of stage four, to simple phrases in stage three, and finally complete sentences that begin in stage two.”

Here’s What You Say When You Talk in Your Sleep

“In the study, researchers found that sleep talkers said the word “no” four times more often in their sleep than when awake. And the F-word popped up during sleep talking at a rate of more than 800 times than what was spoken while awake.”

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Leave a Comment


Eric December 30, 2021 - 12:30 AM

I think sleep talking is absolutely hilarious 😂 my girlfriend be sayin some weird stuff like “make sure you put the sweater on the turtle so he can fly” 😂like okay will do

rasheed gregory December 30, 2021 - 12:34 AM

Once my ex said she tried to start some hanky panky when I was sleep and I sat up told her to leave me the "F" alone and passed back out. Needless to say when I did wake up she was highly upset and I didn't know why until she told me later that day 😯

Elanthiel December 30, 2021 - 12:47 AM

My wife is usually pretty quiet during nighttime. But one day a few months ago, just as I was at the point of dosing off, she suddenly said "fire". Safe to say, after that it took me quite a bit longer to acvtually fall asleep.

Hedfones Prettythug December 30, 2021 - 1:34 AM

If looking at our phones before we go to sleep can affect our sleep , how they explain us who fall asleep looking at our phones

richard-social 812 December 30, 2021 - 1:56 AM

why would she wear that weird top?

nisiepie December 30, 2021 - 2:07 AM

"Reason" or "why". Not both.

Cernold December 30, 2021 - 2:09 AM

Your voice is annoying, it is probably a fault of microphone, something is off, sound is weird

Shadøw December 30, 2021 - 2:17 AM

I highly recommend lucid dreaming to everyone

Shadøw December 30, 2021 - 2:18 AM

Dreams are underrated. More people should pay attention to their dreams

Slade Wilson December 30, 2021 - 2:19 AM

I was actually laughing in my sleep last night and woke up! Perfect timing on the video

Hugo Tron December 30, 2021 - 2:31 AM

get a 4k camera wtf the quality sucks. 4M subs we deserve that

Shadøw December 30, 2021 - 2:36 AM

Everyone should get into lucid dreaming and this is why:
•It can be one of the most euphoric feelings
•You can go on adventures, either following the storyline or doing your own thing
•You can learn to control it
• You can use it to help with anxiety and other mental disorders
• You dissociate less
• It can help with stage freight
•Getting rid of reccring nightmares
•Facing fears
•practicing other skills

Just know it's a skill and it will most likely take time for you to have your first one. Everyone's mind works differently

Bob Motster December 30, 2021 - 2:41 AM

Aha, I see where this is going. One day we'll probably be expected to keep on working even while we're asleep.

Dennis Dawson December 30, 2021 - 3:37 AM

I was learning the Japanese language. My roommate recorded me talking in my sleep in Japanese. Was funny! He didn’t know I was learning a new language and thought I was possessed. It was gibberish Japanese BTW.

Phantom Apprentice December 30, 2021 - 3:47 AM

So the TLDR is "we talk in our sleep because we dream" , another scientific click bait brought to you by seeker…

Allen Knutson December 30, 2021 - 4:01 AM

I hear
the secrets that you keep.

When you're talking to your sheep.

SKPjoe Coursegold December 30, 2021 - 5:26 AM

interesting shirt.

OnTheFritz602 December 30, 2021 - 5:30 AM

Sleep talker here. Wake myself up, and it's always in the morning during a vivid dream.

Aydin AR December 30, 2021 - 5:54 AM

My brother sometimes farts in his bed, is it normal?

? December 30, 2021 - 6:03 AM

They talk when I am sleeping and read my mind to force sleep deprivation 😭

Ronnie Rabell December 30, 2021 - 6:41 AM

Huh….. This doesn't explain that one time when i engage a full conversation with my gf about fishing. And then she joined in on my dream saying "wow thats a big snapper," thats when we woke up and said to each other, were we just sharing a dream of fishing ?
True story

TAX THE CHURCHES December 30, 2021 - 7:18 AM

That shelf is not balanced.

junglefury45 December 30, 2021 - 7:31 AM

Do you guys have a video on do not wake up a sleepwalker

Gabriela Paes December 30, 2021 - 8:01 AM

Where do I find Maren's video?

Hikari Hellion December 30, 2021 - 8:03 AM

Apparently I have a habit of switching between German and English in my sleep, and swearing. Sometimes in both languages.

dna ann December 30, 2021 - 8:06 AM

People dont talk in their sleep they just scream and wake up

Brett December 30, 2021 - 9:12 AM

These comments are the best!

Brett December 30, 2021 - 9:18 AM

I found a way to go to sleep easier (for me at least). I have a few dreams I remember, and I start thinking about them. I put myself in that dream as well as I can remember. Doing that is often the last thing I remember before waking up in the morning. I think it put my mind in some kind of sleep mode. The hard thing is remembering some last dream that wasn't unpleasant.

Močnik Royale December 30, 2021 - 9:43 AM

Thanks for doing the research for me and then proposing it to me in a cool and clean way. <3 thankss

Meis December 30, 2021 - 9:54 AM

This chick just animorphed into sleep

HELL WITH IT!! B. L. A. December 30, 2021 - 9:59 AM

I know the secrets that you keep
When you’re talking in your sleep 💤
Lot of truth in that song. Lot of truth indeed

darthsirrius B December 30, 2021 - 10:11 AM

I remember when I was a kid, we had a slumber party, and I guess I was fidgeting like a dog or something and my friend's mom ask me if I was okay, and we had a full five minute conversation about what I was dreaming about. I was asleep for the entire thing lol.

sarahmeg48 December 30, 2021 - 10:40 AM

One time at summer camp, one of my counselors woke up in the middle of the night to 4 people sleep talking at the same time… in 4 different languages!

3800Tech December 30, 2021 - 10:51 AM

My partner makes random sounds and utters random words while she is sleeping and often twitches her arms and legs, while I have the opposite experience with sleep paralysis.

RANDOM videos December 30, 2021 - 11:04 AM

Lucid dreaming is my t.v. at this point now. I'm like on episode 45 of a continuous dreamline story. Ive learned so much about myself. Dreams and nightmares I can never forget.

Rui Ni December 30, 2021 - 12:15 PM

David Peterson, that's what she said.

MmmmPiePants December 30, 2021 - 1:05 PM

Spironolactone. Wildest dream's I ever had.

Dru Buu December 30, 2021 - 2:39 PM

I talk in my sleep every night. When I spend the night with friends, they say I trick them into conversing with me because what I’m saying halfway makes sense… at first.

FrancesBaconandEggs December 30, 2021 - 4:04 PM

I’ve said the most ridiculous stuff in my sleep, including things that are absolutely not true (for example, I don’t like blueberry waffles, but apparently I told my sister that at 2 AM). My greatest fear is that I will say something extremely inappropriate and gross 😭😭😭

kwazycupcake December 30, 2021 - 4:43 PM

My family used to ask me what numbers to put in the lottery when I'm asleep and surprisingly responding with numbers.

DEEP philip December 30, 2021 - 10:15 PM

when i was 8 years i became jack in titanic and had a full on conversation with rose…my sister heard this and still makes fun of it

Mohsen Abbasi December 31, 2021 - 1:20 AM

I get ideas for productsor solutions to problems at work while sleeping, and wake up to write them down :)

Emery Paine December 31, 2021 - 5:03 AM

Makes sense.

Γιώργος Κυλάφας December 31, 2021 - 12:49 PM

So… what is this surprising reason we talk in our sleep?

Lara Schilling (Digitalis) January 1, 2022 - 4:00 PM

I apparently yell in my sleep. I have various parasomnias (undiagnosed), but they change depending on what meds I'm taking.
PS ~ Hey Trina!

Elizabeth Gary January 2, 2022 - 1:35 PM

I urge everyone to use Dr Alaho Olu herbal supplements on YouTube because he cured my HSV 2 and HPV. He cures multiple Fibroids too..

Rhys Beer January 3, 2022 - 2:06 AM

Not gonna lie the original lady who did these videos was just want more captivating when diving into the nitty gritty on this channel.

Mavis Chadwick January 3, 2022 - 6:27 PM

All thanks to Dr Alaho Olu on YouTube who finally cured me from Herpes Simplex Virus type 1&2 and HPV…

John Sikes January 4, 2022 - 9:48 PM

My dog 'talks' in her sleep, too. You can hear her under the bed chasing some prey or protecting us from some apparent danger. You can even tell what she's dreaming about to some small degree by the differences that are apparent in her waking communication. Quite different when chasing 'prey', requested reentry, or protection mode.

Like That January 5, 2022 - 6:54 PM

I’m happy my partner is not fluent in my mother tongue…