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Electrodes are placed at specific sites on a user's body depending on the physical location of their pain. Soothing pulses are sent via the electrodes through the skin and along the nerve fibers. The pulses (controlled by the user at all times) suppress pain signals to the brain. TENS Machines also encourage the body to produce higher levels of its own natural pain killing chemicals.

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7y ago
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Q: How does a TENS unit work?
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