It is real, as it causes RSI pain.

http://aaroniba.net/articles/tmp/how-i-cured-my-rsi-pain.html

Ok, apparently some psychological conditions can induce physical pain. Unfortunately psychology research is not scientific enough (or at all) to be helpful in general.

There you go, CoTers. If you are as smart as you think you are, you can revolutionize psychology.

It seems crazy. My skept-o-meter is buzzing at the comments, 100% of which are "amazing it worked for me" testimonials, or enthusiastic plans to try it. A lot have full names that link to sites that the person is obviously some sort of promoter.

reads like an ad.

It does read like an ad, but the unconscious is a powerful thing still.