TENS , or transcutaneous electrical nerve stimulation, is a pain treatment that uses low voltage electric current to Distract pain signals in your body. TENS is typically done with a TENS unit. Nowadays there are many types of TENS Modalities are available, but the basic principle remains the same. TENS can be portable or with a clinic setup. You attach the pads directly to your skin. When the machine is switched on, small electrical impulses are delivered to the affected area of your body, which you feel like a tingling sensation. The electrical impulses can reduce the pain signals going to the spinal cord and brain, which may help relieve pain and relax muscles. They may also stimulate the production of endorphins, which are the body’s natural painkillers. There are two theories about how transcutaneous electrical nerve stimulation (TENS) works. One theory is that the electric current stimulates nerve cells that block the transmission of pain signals, modifying your perception of pa