Treatment of hemorrhoids is divided by the cause of symptoms, into internal and external treatments. Accurately classifying a patient's symptoms and the relation of the symptoms to internal and external hemorrhoids is important.
Note also that the average life expectancy after being diagnosed with Parkinson's is about 9 years -- hence, those who participated were already at this point at the beginning of the study.
People with Parkinson's disease can live a very long time, and the life expectancy varies based on individual problems and other medical issues. With the average age of onset of symptoms being around 60 years of age, life expectancy may be anywhere from 15-20 years if no other major health issues exist. Younger onset people often have longer life spans as well.