It is - I'm wondering, 'cos I'm the only one with PD in my family, so genetics probably isn't the answer, but I don't see where chemical exposure could have come from - typical suburban background & too cowardly to try drugs. Could a general anaesthetic I had just before onset be a trigger ? I was out for 90 minutes. Amanda Phillips ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn