A Transcutaneous electrical nerve stimulation (TENS) is a form of therapy that uses a low-voltage electrical current to relieve pain. It is connected to wires that conduct an electrical current through self-adhesive massage pads. These pads are placed on an area of pain, and a circuit of electrical impulses travel along the nerve fibers. TENS devices are used as a non-invasive nerve stimulation intended to reduce both acute and chronic pain. Many people living with chronic pain use a TENS machine as an alternative to medication and report significant relief from using them. This one pictured has some of the best reviews in the market.
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