Periodic Paralysis is a group of disorders whereby patients become weak due to triggers such as rest after exercise or certain foods. These disorders are part of a broader class of disorders called ion channelopathies, in which a genetic defect in a muscle ion channel results in symptoms of episodic stiffness or weakness in response to certain triggers.
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These questions and more are answered within our site. Please feel free to browse the menu on the left as well as our highlights at the bottom of this screen! We welcome you to the PPA and will do our best to assist you as you search for answers about these rare diseases
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This site does not deal with paralysis due to stroke or spinal cord injury, but does contain some information about sleep paralysis, which is sometimes confused with periodic paralysis.