A TENS machine is small -- about the size of an iPad mini. It’s connected to a series of electrodes, which are put on your skin to deliver a low-voltage electrical charge. The electrical pulses ...

Mark Yu, the man behind the portable iPhone-enabled TENS unit U-Gym, is back with a crowdfunded project called U-Gym Mini, a muscle stimulator intended for pain treatment. AppleInsider went hands-on ...

TENS and EMS are two physical therapy techniques that may help treat pain or stimulate muscle contractions. Both are sometimes called electrical stimulation (e-stim). In this article, we’ll look at ...