By Admin 
Has it ever happened to you in a dream that you are in danger, you want to scream with all your might, but your throat seems to close? The heart is beating fast, the mind seems to be awake, yet no sound comes out. As soon as you wake up, you realize that everything was captured in your mind. This is not a scary coincidence, but the result of a very precise scientific process going on between the human body and mind.
Mind awake in dream world
Sleep is divided into many stages, of which the most mysterious stage is considered to be REM sleep. REM means Rapid Eye Movement, most dreams occur during this time. In this state, the brain is almost as active as it is while awake, but the body is in a state of complete rest. This is why dreams seem so real and emotional.
REM sleep and the body’s lock system
During REM sleep, the brain sends a special message to the body, which is called muscle atonia in scientific language. In this condition almost all the voluntary muscles of the body become temporarily inactive. Its purpose is very important, so that the person does not harm himself by repeating what he is seeing in the dream in real life. The same lock system also applies to the muscles that produce sound.
Scream in the mind, voice stuck in the body
When you see a situation like fear, danger or attack in your dream, the brain naturally gives the order to scream. But since the throat, tongue and breathing muscles remain inactive at that time, the sound cannot come out. This gap between mind and body makes you helpless in dreams.
The scary experience of sleep paralysis
Sometimes this condition is also felt on the border of sleep and wakefulness, which is called sleep paralysis. In this, the person is conscious, but the body cannot move, nor can he speak. Many people experience scary scenes or the illusion of someone’s presence during this time. Actually, at that time the brain is awake, but the body still remains in the grip of REM sleep.
Relationship between stress and nightmares
Scientists believe that the possibility of nightmares increases due to constant stress, anxiety, fear or mental pressure. When the brain processes the day’s emotions in sleep, the same fear emerges in dreams. It is common to try to scream in such dreams, but the body’s defense system stops it.
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