Sleep paralysis occurs when your mind wakes up while your body is still in a stage of sleep that prevents movement.
During normal sleep, the body enters a stage called REM sleep (Rapid Eye Movement). This is the phase where most vivid dreaming occurs. To prevent you from physically acting out your dreams, the brain temporarily turns off muscle movement.
This natural safety mechanism is called REM atonia.
In most cases, when you wake up, the brain restores normal muscle control immediately. But during sleep paralysis, the mind wakes up before the body does, creating a strange and unsettling situation where you are conscious but temporarily unable to move.
Why You Can’t Move or Speak
One of the most disturbing aspects of sleep paralysis is the inability to move or scream.
Even though you are awake and aware, your brain is still sending signals that keep your muscles relaxed and inactive. As a result:
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Your arms and legs won’t respond
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Your voice cannot produce sound
