I know this because of a particular pattern recognition ability I have with weak electromagnetic fields. It is a similar process to that of developing the skill of human echolocation but in this case it is the skill of interpreting weak electromagnetic fields and their physiological affect on the body and most likely other biological life. See "Human Pattern Recognition of Molecular and Electromagnetic Fields."
For more information on this process visit "Extracting Molecular Magnetic Fields from Audio and Video Analogs" and the "Designer Frequency Insights and Tuning.
Watch the "Vitamins B-12. B-6 and Folic Acid as Healing Audio" video here.
I often use the word "healing", though helpful or mitigating may be more appropriate. Many people find some relief or benefit listening to the audio tones, in Pink noise format, with their health conditions. I match herbs, medications, vitamins etc., that have some positive cross over physiological effects on the body. Not all the the chemical or molecular effects cross over with the designer field, but they do play a role within the body. The best way is to try out some designer frequencies and see if they are helpful or not.
Note - There is a compatibility issue with Windows Explorer and MSN for opening links. All my videos can be found on YouTube by searching there for Helpfulwaves.