A random comment.

This is the first time I've seen "anti-agathics". Based on what I know of biblical Greek, I read this as something that would be like "anti-good". If I had been in charge of making up an anti-aging drug, I would have called it something like anti-presbycs (maybe that wasn't chosen because it looks too much like "presbyterian"? Presbyterian does derive from the world meaning "elder"...).

This isn't a request to change the wording if that's what people who will be taking the survey are familiar with BTW, just something I noticed. Carry on.