At night, people not only snore or walk around the house, but sometimes they make quite intelligible speech.
Thus, there even appeared a belief that one can find out all the secrets from the speaker at night or that he himself can blab them. But what happens to a person at this moment and is it worth worrying once again?
Scientists have given an answer to this question. In general, everything is not as scary as it seems.
Parasomnic disorder
This is the scientific name for a sleeping person's monologue.
The speech may be unclear, clear, or downright gibberish. The essence of it does not change, and the phenomenon itself does not indicate anything out of the ordinary.
What happens to the sleeping person
It has been established that the brain experiences four phases of sleep at night, one of which is the REM phase (rapid eye movement sleep).
When the brain enters the REM phase, glycine and gamma-aminobutyric acid are released, which block the work of the vocal cords, muscles of the mouth and other parts of the body.
Therefore, in a normal situation, a person does not scream if he has nightmares and does not twitch his limbs.
Explaining the reason for the night monologues, scientists have put forward two theories.
1. Sometimes, however, glycine and gamma-aminobutyric acid cannot block the functioning of the vocal cords (science does not yet have an answer to why this happens).
2. It is possible that the brain experiences some kind of excitement when moving from one phase of sleep to another.
It is this circumstance that can cause sleepwalking or nightmares, and then people not only talk peacefully, but also scream in their sleep.
Conclusion
The available data to date does not allow researchers to consider nighttime talking a disease or disorder.
Earlier we told you about 5 myths about cheating that science has debunked .
