<prompt> Ekbom syndrome is:-NarcolepsyRestless leg syndromePicaDelusion of nihilism  <response>: Restless leg syndrome Ekbom syndrome. Sensorimotor disorder, commonly seen in 5-15 of the population. Affects females and after 40 years. 4 salient diagnostic features being: Urge to move limbs, commonly associated with premonitory sensory discomfo Motor restlessness Relief by activity EveningNight worsening Pathophysiological explanations or mechanisms attributed are: Dysregulation of dopamine transmission Intracellular iron dysregulation. This can be objectively substantiated by decreased CSF ferritin and prohepcidin Intracellular regulatory protein for iron levels. 