There’s a great video on Geary Behavioural Economics Blog whic offers some startling facts about placebos, including how colour, shape, size and volume can drastically alter their effect.
[youtube]http://www.youtube.com/watch?v=yfRVCaA5o18[/youtube]
Then 25 lttrs n th alphbt asks readers to
“substitute in your mind “brand” for “placebo”
The brain eh? Weird.