Thanks, Camilla. It's quite a challenge to build an understanding of certain conditions which affect the brain. I'm trying to do that regarding PD, and other effects of dysregulation of certain neurotransmitters & hormones. The purpose is to clarify for myself as much as possible my own experiences over my lifetime in that regard; with the larger purpose of sharing this info with my children, as much is genetic, & I'm in the "Knowledge is Power" camp. Thank you for your presence on this list. You bring a special touch for sure! Mary Legan 55/5 & parttime cg for Earl 86/1.