"Restless legs" refers to a condition where a person feels an uncontrollable urge to move their legs, often accompanied by uncomfortable sensations. It causes discomfort and restlessness that can make it difficult to relax or sleep. Full definition
An overwhelming need to move the legs while sleeping is a symptom of restless leg syndrome, but some people simply move a lot while they sleep with no underlying medical condition. (thespruce.com)
The cause of restless leg syndrome is different for each person, although it comes down to a few general factors. (functionalhealthnews.com)
It's also believed to help with restless leg syndrome, both of which are believed to be caused by low potassium. (healthadviceworld.com)