Because seniors tend to fall over quite a lot and break their bones, the Chinese government is now providing free electrotherapy at all major bus stations, which helps the breaks heal faster. This has created a new tourist industry with peasants flocking in to watch seniors rotate with gyrating motions as the healing power flows through their bodies. The casualty rates are similar for direct and alternating current. However we strongly advise seniors to rather take a pinch of salt and consult their orthopedic surgeons first.