1. A method for using a neural stimulation lead fed vertically through a dorsal epidural space of a human and at least partially wrapped around a spinal cord to operably position a first electrode proximate to a ventral nerve root and operably position a second electrode proximate to a dorsal nerve root, the method comprising delivering electrical stimulation pulses to at least one of: the ventral nerve root using a first conductor in the lead electrically connected to the first electrode to stimulate or inhibit efferent sympathetic activity from the ventral nerve root; or the dorsal nerve root using a second conductor in the lead electrically connected to the second electrode to stimulate afferent sympathetic activity from the dorsal nerve root, wherein the first conductor is distinct from the second conductor, the method further comprising alternating delivery of electrical stimulation to the ventral nerve root and delivery of electrical stimulation to the dorsal nerve root.