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Sleep paralysis

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Introduction
Sleep paralysis is a temporary inability to move or speak that occurs when you are waking up or, less commonly, falling asleep.
Symptoms of sleep paralysis
The main symptom of sleep paralysis is a temporary inability to move or talk.
Causes of sleep paralysis
Sleep paralysis is caused when hormones produced by the body to help you sleep do not wear off as soon you wake up.
Treating sleep paralysis
Ensuring you get enough sleep and improving your sleeping environment will help if you have sleep paralysis. In severe cases, medication may be recommended.
"I had a feeling of immense panic"
Gareth Fletcher, 32, regularly had sleep paralysis when he was a teenager. Although it has virtually stopped, he still experiences it very occasionally.