I agree ... my first thought when I saw the teaser was ... the average lifespan for the pre-morden world was about 25. Back pain is a problem in your 40's - 50's I doubt if a culture will change for such a rare problem. It is like us getting rid of all stairs because people in their 60's aren't as mobile. But then if you are willing to believe in acupuncture you are willing to believe in anything.

http://www.webmd.com/pain-management/features/common-pains-o... http://en.wikipedia.org/wiki/Life_expectancy