Do You Talk in Your Sleep?

A room mate can have many appealing qualities, but talking in their sleep at night would not be considered one. Why do some people have a habit of talking in their sleep while others don’t? It comes down to a mechanism in the brain which is associated with controlling, or guiding certain neural activity. This allows the person to dream, but without speaking or moving.

When the brain mechanism is not perfect, it does not completely kill the actual talking and moving responses triggered by a dream. While not all the signals will be passed through a fair amount do make it and cause the sleeping person to mumble, maybe groan a bit or at times even very clearly say things while they are technically still asleep.

This is the reason why sleep walking also gets triggered. researchers believe that a person who is under severe stress can have psychological problems which lead to the lack of this neural activity to control the speaking or moving around of a person in sleep. There is no clear evidence on how much stress will trigger this, and if it will affect everyone the same way. That is a study for another science project.