The gadget has leads attached to adhesive pads called electrodes.
The electrodes are placed on the skin near the painful area.
Benefits
The TENS unit is lightweight, making it easy to carry and use on the move.
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It can often be carried in your pocket or clipped to your belt.
The electrical impulses may also trigger the body to release endorphins, which act as natural painkillers.
They can also help ensure that you’re placing the electrodes correctly for maximum benefit.
Effectiveness
Researchers are still determining how effective TENS units are for reducing pain.
Research does suggest that some factors can impact the effectiveness.
You may also benefit by using the strongest intensity that’s still comfortable.
In addition, using the electrodes in areas that are acupuncture points may help to reduce pain.
National Health Service UK.TENS (transcutaneous electrical nerve stimulation).
Teoli D, An J.Transcutaneous Electrical Nerve Stimulation (TENS).
2014;4(3):197-209. doi:10.2217/PMT.14.13
