Transcutaneous electrical nerve stimulation (TENS) has two different mechanisms of action. According to one idea, the electric current activates nerve cells that prevent the passage of pain signals, altering how painful things feel to you. The alternative viewpoint contends that nerve stimulation increases the body's natural painkiller, endorphin, levels. The perception of pain is then suppressed by the endorphins.
TENS therapy has been used or is being researched to treat both acute (short-term) and chronic (long-term) pain. The following are a few of the most typical conditions that TENS has been used for: