Electrotherapy is a general term for a variety of electrical stimulation therapies. The most common of these therapies are TENS (Transcutaneous Electrical Nerve Stimulation) and EMS (Electrical Muscle Simulation). Simply put, electrical currents are used to quiet down the affected nerves to provide pain relief, or to stimulate muscle fibers.There are two main theories as to why it works. First, that the stimulation causes your body to release endorphins, your body’s natural pain killers. The second is that the stimulation stops the receptors in your brain from receiving pain messages. So, although you may still have the injury, you simply do not sense it and therefore become temporarily pain free.






