Random note: 25% of cases of RLS are caused by anaemia. It's always worth getting your ferritin levels checked. The lower reference range varies between countries from 12 to 75, though it's more often 25 or 50. There's been research showing that if you have RLS, it needs to be above 75. So if yours is below 75, either get a doctor to prescribe iron or find prescription-dose supplements, which are much higher than standard supplements. Don't supplement without getting tested, though, because too much iron is dangerous.
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