What are the primary factors and underlying conditions that contribute to the development of restless leg syndrome?

Restless leg syndrome is very uncomfortable and keeps you from sleeping. You have an impulse to fidget, and you feel like you can’t be still. 

A deficiency of vitamin B1 (thiamine) causes restless leg syndrome. Refined carbs and sugar can cause a vitamin B1 deficiency. The best source of natural vitamin B1 is nutritional yeast.