Very interesting.The common factor relating to both would be nitric oxide which is a main vasoactive agent in Erectile Dysfunction and also in restless leg syndrome where variant association NOS1 gene is found.Mov Disord. 2008 Feb 15;23(3):350-8.
Variants in the neuronal nitric oxide synthase (nNOS, NOS1) gene are associated with restless legs syndrome.
Winkelmann J, Lichtner P, Schormair B, Uhr M, Hauk S, Stiasny-Kolster K, Trenkwalder C, Paulus W, Peglau I, Eisensehr I, Illig T, Wichmann HE, Pfister H, Golic J, Bettecken T, Pütz B, Holsboer F, Meitinger T, Müller-Myhsok B.
May be some thing to work on.Thank you Dr.Fouad for a very thought provoking blog.