Gemma Atkinson opens up on 'terrifying' disorder after 'fighting for life'
Gemma Atkinson shares her frightening experience with sleep paralysis on her podcast with fiancé Gorka Márquez.
VIDEO Rare and terrifying experience: See what happens to the body during sleep paralysis
Sleep paralysis is a frightening experience that can affect almost anyone, often without warning, where an individual is aware of their surroundings but unable to move or speak, sometimes accompanied by a sense of pressure in the chest or vivid hallucinations.