The Monroe Institute is a facility that’s researched various frequencies and studied altered states of consciousness, remote viewing, out of body experiences etc and the CIA enlisted their help to train their agents to utilise these abilities as spy tactics.
In one of the declassified documents from 1977 released by the CIA, it's mentioned that you can use the code 55515 to reduce pain from the physical body.
What You Do:
Focus your awareness on where your physical pain is coming from and repeat the numbers 5-5-5-1-5 until the pain is gone.
Anecdotal reports state an almost immediate reduce in pain after using this method.'
Placebo effect? Or Re-coding your body?
I did a bit more digging at it looks like there’s a gene discovered in 2000 (over 20 years later) that relates to pain perception also identified as 55515 
A NCBI page on this specific gene writes "These channels have been implicated in synaptic transmission, pain perception as well as mechanoperception."
(Mechanoreception is the ability to respond to certain kinds of stimuli). This gene is expressed predominantly in the pituitary gland.
Interesting right?!
References
https://www.ncbi.nlm.nih.gov/gene/55515
https://www.ncbi.nlm.nih.gov/gene/55515
32 comments
Would like to know more about the H + human tape please
The process has to be coded into your psyche w a monroe tape. You can’t just say the number and expect it to work more than a placebo. Although placebos can be effective just get the H+ human plus tape that encodes this into yourself.
I’ve had shoulder pain for about 6 weeks now and started repeating the numbers yesterday and I feel a little better, I’ll continue repeating them. Thank you.
I have had back pain since a fall at 14 yrs old. I tried this in a dark room no distractions. Yes it works right away the first time. After 24 hrs it required a few tries and calm state lioke just before bedtime. No drugs just concentration.
Et in Arcadia Ego