Link to Original Source
My flight with him by chance coincided with me just having watched (this was several years ago) a 20/20 John Stossel report about a controversial new doctor who treated back problems with a lecture. John Stossel had suffered from upper back/neck pain for years. The doctors lecture was that basically, back pain was the new fad stress injury (much like ulcers used to be). The body reacts to "un-dealt with stress" by causing pain as a reminder. The way to treat it was to basically tell yourself, "I'm stressed, I'll be OK." John Stossel was very skeptical and tried it and had the first releif for his pain in years.
Dr. Hadler (it turns out) was also consulted about the 20/20 article. He says his view wasn't as extreme as the "lecturing" Dr.. At the time, Dr. Hadler was often called in to debunk workers comp claims about Carpal Tunnel in that Carpal Tunnel is a very specific and limited problem (often mis-diagnosed). He says most people experience pain because they're unhappy.
Not sure I quite agree with all of that, but it's food for thought.