Current paper summarizes ancient and modern research on dowsing. It also describes how old folk medicine have linked rheumatic pains to dowsing. Typical old cures to ease rheumatic pains were to get stung by a bee, burning nettles or jelly-fish. This was of course painful but the long-term effect was that the rheumatics pains were gone for weeks after that. This was also the starting point of current study as it was concluded that it was the piezoelectric properties of bone that explaned why those old methods seem to work. This explanation is described in detail and so is the performed laboratory test. It was concluded that the dowsing reaction is a physical reality or rather that the dowsing reactions occur under certain conditions. Performed initial tests on bone (forearm) of pig showed that a voltage of 5 V can easily be obtained by frequent knockings on top of the test bone. The paper ends with suggestions of continued research.