Hi kcbtyler,
The two technologies are actually very different. To be clear, TENS units actually deliver electricity into your body. In essence TENS electrocutes the muscles and nerves over and over again until they are exhausted and unresponsive once the TENS stops. There was a time when electrocuting parts of the body was considered good medicine. That is a lot less common now as medicine has advanced a lot since the 1950's.
TENS is a very old and primitive treatment. It remains part of many insurance coverages simply because it was added decades ago and its kind of a matter of 'once your in your in'. It is rare that insurance companies drop these kinds of items from their coverage because, as Doctors and PTs quit using old less effective methods, it pretty much becomes a non-issue for them anyway.
BFST does not electrocute your body. The energy delivered by BFST travels through air and skin like the warmth from the sun or a television signal. As it passes through your soft tissue, it energizes your circulatory system causing blood flow to increase. The energy from a BFST Energy Web is 'tuned' to stimulate soft tissue the most while being fairly transparent to the skin so it can get deep inside your body.
BFST is relatively new. We have been developing it since 2007 and have been manufacturing and promoting it since late 2011. It is well evolved and fully FDA approved and available to the public. But it takes a long time before Insurance companies add new technology to their policies. It's very common for new medicines to be on the market for 10 years or more before they are commonly covered by most insurance companies. It doesn't just happen automatically either, we have to go through a ton of work to get added to the lists. We're working on it, but truthfully, widespread insurance coverage will be 2 or more years out.
To answer your question comparing BFST to TENS, BFST is 60 years ahead in technology but 60 years behind in working with insurance companies.
I hope this helps
