User talk:Johndamanda

Dopamine
Hi, thanks for your edits -- I'd like to make a couple of points though. First, a condition is usually called "age related" if its prevalence increases as a function of age, which is certainly the case for Parkinson's. It doesn't mean that age "causes" the condition -- in fact there is really no way that age can directly cause anything at all (except being older). Second, the midbrain is generally considered part of the brainstem. That's kind of weird, but it's what the textbooks say. Regards, Looie496 (talk) 22:38, 14 June 2013 (UTC)