My brother inlaw had throat cancer and suffers dry mouth.(carries water bottle) He and four others tried accupuncture. Only 1 of 5 said it helped. On a different level, my father had a sciatic nerve probelem in his leg and a bad back. He tried everything except surgey to no avail. One day a friend suggested accupunture and he laughed. His friend said you tried everything else, so why not. 2 treatments later he had no pain. Could not believe it. So like someone said, it has more proven abillities on the nervous system. Now that I think of it 1 out of 5, or a 20% chance is better than 0! Especially in OUR neck of the woods!