To make it simple when someone asks me what this device does:

The P90 has both Terahertz waves and PEMF waves in one for a fraction of the cost of other devices that only have one, and it's far more powerful than anything else I've used.
The PEMF has been FDA approved since the late 1970's for things like stress, anxiety, depression, PTSD, bone density, blood flow enhancement and heart support, pain and neuropathy, as well as TBI's and seizures and brain issues.
PEMF also is exceptional for resetting the Vagus nerve/stress response for those who have difficulty with stress response management, adrenal fatigue, cortisol issues, hormones, and energy - and ESPECIALLY those who don't sleep well.
PEMF is like "grounding on steroids times 1000" and 30 minutes on the device is almost equivalent to spending 24 hours barefoot in the woods in terms of "grounding".
Terahertz waves are a little newer to the health field but help with inflammation, arthritis, energy, adrenal issues, brain regeneration and BDNF stimulation, nerve remylination, detoxification and lymph clearing, cleaning up "dampness" in the body, stimulating organ and cell function, tendon and ligament regeneration, as well as the entire field of consciousness enhancement and boosting supplement bioavailability.
Pretty simply put, there is nearly no health condition you can name that this device can't help support you in some way, shape, or form - and you don't have to re-buy it every month or pay a monthly fee to use it!