The Periodic Paralysis Association (PPA) welcomes you to our non-profit organization!

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.

⋅ Are you a Patient, Family Member, or Physician seeking information?
⋅ Are you interested in Membership in the PPA and access to our ListServ and Forum? Become a member
⋅ Would you like to ask a question of our Medical Advisors?

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


Read a general Article on Hypokalemic Periodic Paralysis

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.

Latest news

Amazon Smile helps PPA
As you do your last – minute holiday shopping please be aware that the periodic paralysis association is registered with
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All lectures are on line
For those who are interested in reviewing the lectures of our speakers in Scottsdale, all videos are online. Please go
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Participation in an investigational panel discussion
Dear PPA Membership, The Periodic Paralysis Association has the opportunity to participate in an investigational panel discussion surrounding the use
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