TENS unit is worth it if you have aches/pains
I'm older and have some recurring pains - my right shoulder is the worst.  It is part of carpal tunnel syndrome from typing most of my life.  Some days my right shoulder feels like concrete has been poured in the joints, making my shoulder heavy and hard to move (plus painful).  I place a pad on the front, just above my armpit and then one pad on the back, usually around the outer edge of the shoulder blade.  I could attach two more pads, but usually two is enough.  I then choose a pattern, strength and time and let the TENS unit do the rest.  The electrical charge that passes around/through the muscle mass in that area does help to ease the stiffness and pain.  I can't say how much this helps me - all I can say is that it DOES help and is a great way to relieve pain without using drugs.
Rating: 5 stars