Restless Legs Syndrome - Understanding the Pathophysiology

Why in the evening of all times - and what is happening in the brain? In the cerebrospinal fluid of patients the iron storage value stands at 1.11 instead of 3.50. In the blood the same difference cannot be measured at all. And the most widespread explanation of the condition is probably the wrong way round: the measurements point not to too little dopamine, but to a surplus. This volume assembles what is genuinely known today about how restless legs syndrome arises - iron, dopamine, adenosine, glutamate, the body’s own opioids and heredity - and keeps a clear line between what is well supported, what remains a working model or hypothesis, and where the literature holds no study yet. An entire part is given to the body clock. It answers the question every patient asks: is it the time of day or the sitting still? And it draws out what matters for treatment, which is the hour at which the tablets are taken. WHAT IS IN THE BOOK- The brain’s iron metabolism and why the blood value does not reflect it- Why 'dopamine deficiency' is the wrong shorthand- When symptoms peak, and why the clock studies are still small- Adenosine, glutamate, and why the evening brings wiredness rather than tiredness- What the effect of opioids reveals about the underlying cause- What MRI and PET show - and what they do not- Why a treatment that worked for years can turn into the problem, and what the 2025 guidelines conclude from it WHO THIS BOOK IS FORFor patients for whom 'dopamine deficiency' was never a satisfying answer, for anyone who wants to understand the mechanism before a treatment decision, and for health professionals looking for the state of the evidence in an orderly form. ABOUT THE SERIESVolume 3 of 52 in the book series on restless legs syndrome, part 'Foundations'. Every volume can be read on its own. The statements in this volume rest on 304 professional sources, each one listed individually in the reference section.