Transcutaneous electrical nerve stimulation (TENS) is a noninvasive, drug-free technique to relieve acute and chronic pain. A battery-powered device is used to send low-voltage electrical currents ...
They’ve got some nerve! Vagus nerve stimulators are making waves as a potential way to relax, sleep better and improve gut health. But an expert on the vagus nerve warns that noninvasive VNS devices ...
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