Why Does a Tens Unit Help with Pain

A transcutaneous electrical nerve stimulator (TENS) sends electrical pulses through the skin to start your body’s own pain killers. The electrical pulses can release endorphins and other substances to stop pain signals in the brain. TENS can reduce pain.

Does a TENS unit reduce inflammation?

Thankfully the TENS unit can help with Inflammation as well. Numerous studies have discovered that the electric impulses can reduce inflammation located deep within the muscle fibers.

How long does pain relief last after TENS?

Length of pain relief The post-stimulation analgesic effects of TENS can therefore last anywhere from five minutes to 18 hours (Woolf, 1991). Some patients’ pain levels do not return to pre-stimulation levels even after 24 hours (Cheing et al, 2003).