[ad_1] Paramyotonia congenita is a rare neuromuscular disorder that causes muscles to be slow to relax after contraction, with symptoms worsened by exercise and cold temperatures. It is caused by a mutation in the SCN4A gene and can be managed by avoiding triggers or medication. Paramyotonia congenita, also called Eulenburg’s disease or Eulenberg’s paramyotonia congenita, […]