I don't know! Maybe...

...it has implications for the placebo result in the AD trial.
The short version is from the Advertiser SA Weekend: How to think yourself young.By Bruce Grierson

http://www.nytimes.com/2014/10/26/magazine/what-if-age-is-nothing-but-a-mind-set.html?_r=0

This paragraph especially:

Langer came to believe that one way to enhance well-being was to use all sorts of placebos. Placebos aren’t just sugar pills disguised as medicine, though that’s the literal definition; they are any intervention, benign but believed by the recipient to be potent, that produces measurable physiological changes.

Make of this what you will...

Apologies if it has already been posted and talked about,

regards K

ps Not to meant take anything away from the research.