The physical frequency range of tens is

The physical frequency range of tens is 2 ~ 2~ 160Hz.

Tens is the abbreviation of transcutaneous electrical nerve stimulation, which

Development of biofeedback transcutaneous nerve electrical stimulation labor analgesia system,

As a non-drug labor analgesia method, transcutaneous electrical nerve stimulation has been paid more and more attention.

Transdermal electrical stimulation: Transdermal electrical stimulation (TENS): Transdermal electrical stimulation can relieve pain by activating endogenous opioid peptides, and can also stimulate the crude fiber nerve at the pain site, changing the sensory impulse introduced into the central nervous system, so as to achieve the purpose of relieving pain.