If you’re looking for pain relief, you may have considered or had TENS units recommended to you. They’re incredibly popular nowadays, and many people swear by them to relieve all different kinds of ailments. But if you’re new to TENS therapy, it can be overwhelming to try to research what it is and if it’s a good fit for you in particular. This guide will walk you through everything you need to know about TENS units, including what they are, how to use them, and how to find the best unit for you.