My husband bought this for himself (knee problems) and asked me to try it. My biggest problems are my ankles, especially my left one. I set it on 20 to start and had to back it down to 15. Besides the "tingling," I felt something happening to my left ankle! Not pain, but just a different feeling. I liked it.
After 15 minutes, I stopped, and my husband tried it. We set it the same, and he couldn't feel a thing. He bumped it up to 30 and still didn't feel anything. It is now at 55, and he feels the tingling. Then shockingly, he felt an odd feeling in his BAD KNEE. Not unpleasant, just a different feeling. We both like it so far and have high hopes. I'll be back in a few weeks to give another report.
Bottom Line: Yes, I would recommend this to a friend
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