ooops i stand corrected: At 20:26 1999/06/25 -0400, i wrote: >2. parkinson's affects all muscles... i should have said something more like: Autonomic nervous system responses are affected for example: the chemistry maintaining heart rhythm may be impaired, the heart muscle is not. Muscles in the esophagus are not affected, I don't believe, it is the autonomous response to swallow that is impaired, not the muscle. janet janet paterson 52 now / 41 dx / 37 onset PO Box 171 Almonte Ontario K0A 1A0 Canada a new voice http://www.geocities.com/SoHo/Village/6263/ [log in to unmask]