A Shy-Drager Syndrome is condtition where the person suffering from it has an abnormal autonomic nervous system, this system is responsible for the involuntary functioning of the body and it also includes the blood pressure and the heart rate.
This condition is somehow similar with Parkinson's disease, only Shy-Drager is much severe and it damage the body more than the Parkinson's.
Adult ages 60 and older are the ones most likely to get the disorder.