IF YOU'RE ON a mission to grow muscle, increase strength, and promote recovery after your workouts, you’re likely already ...

Revenue for TENS machine manufacturers is expected to increase just 1.0% in 2014, to $502.2 million.

A TENS machine is a small device with wires that are connected to electrode pads. You stick the electrode pads to your skin and turn on the machine.

If you meet the above criteria for coverage, you’ll enter a trial period, in which Medicare will cover the rental of a TENS unit for at least 1 month but not more than 2 months.