Hmm... a couple thoughts
So if you are anti (against) oxidents, you become more optimistic??? By being deliberately negative - against something - you become more positive???
As for doctor$, sometimes I think they are helpful, and other times I think the goal is to take your every last penny (or farthing) one has prior to your death.
I had an aunt who towards the end was on 25+ pills a day. She then ended up getting, and dying from, Alzheimers, and I've always kind of wondered how all those different pills may have been interacting with each other.