Needles and pins

Arguments will continue for ever about the effectiveness of acupuncture.Ive never tried it myself but years ago my dad was off work with a bad back for a few months. someone suggested acupuncture and although he never thought it would work he said he would try it.After half hour on the couch having pins stuck in to him the practitioner asked my dad to bend down and pick something up off the floor.Slowly he bent down and to his total surprise there was no pain whatsoever. The next week he was back at work totally cured of his pain.Maybe it works for some and not for others.