The date was chosen because it was the date of birth of Professor Karl Axel Ekborn, a Swedish neurologist who first described the syndrome in his writings in 1945.
Since then they have studied and learned a lot about this situation. The main cause is unknown but has been linked to the level of iron in the blood or dopamine.
The syndrome can also occur in the hands. Other causes may be side effects of various medications, medical conditions such as ADHD or old age.
The goal of International Awareness Day (RLS) is to increase the understanding of the jerky movements and the distress they cause in some cases.