Propanadol is a a beta blocker that turns down the activity of the sympathetic nervous system. It appears to effect neurons in the (If there's anything I have its increased vigilance.) It's a drug Dr. Light is interested in because his study found that the receptors that measure sympathetic nervous system activity in the body went banana's after ME/CFS patients underwent a mild exercise test. (The healthy control's levels didn't budge). Anyone tried propanadol?