Learn About TENS

How TENS works, who it helps, safety rules, and how to get the most from your device — all based on published clinical evidence and physiotherapy practice consensus.

TENS Devices

Research

Are TENS Units Safe? Contraindications, Risks, and Safe Use

OTC TENS units have an established safety profile after decades of consumer use — when used correctly within the approved indications, they are among the lowest-risk electrotherapy devices available. However, TENS has specific absolute contraindications where use is medically dangerous, and several relative contraindications that require professional guidance. This article covers what the evidence shows about TENS safety, the specific situations that prevent safe use, and the practical rules that keep TENS use safe for approved users.

10 min read

TENS Devices

Research

How Does TENS Work? The Science of Electrical Pain Relief

TENS (transcutaneous electrical nerve stimulation) delivers low-level electrical current through electrode pads on the skin to modulate pain perception. The mechanism is well-understood and grounded in established neuroscience — two complementary pathways explain most of the observed effects. Understanding how TENS works helps users select the right stimulation parameters, position electrodes correctly, and have realistic expectations about what the technology does and does not do.

11 min read

TENS Devices

How-To

How to Choose a TENS Unit: The Complete Buying Guide

Choosing a TENS unit involves five decisions: whether you need wired or wireless, how many channels you need, how many programmes matter for your use case, what your budget is, and which brand accountability level you want. This guide walks through each decision in order, from the most important to the most preference-based, and ends with a clear recommendation for each user type.

10 min read

TENS Devices

Research

TENS for Back Pain: Evidence, Electrode Placement, and What to Expect

Back pain is the condition TENS is most commonly purchased for, and it is also one of the conditions for which TENS has the most evidence. The research base is not perfectly consistent — effect sizes are modest and individual responses vary — but the weight of evidence supports TENS as a useful component of back pain management, particularly for chronic lower back pain. This article covers what the research actually shows, how to use TENS effectively for back pain, and what realistic expectations look like.

12 min read