Binaural Beats.
Before you read this page, please understand one infinate point.
- I believe (from personal experiences) that frequencies can and may enhance or detract from a persons mental balance.
The problem is, "who can you trust"?
I write about "Fabric Frequencies"
and while I could just as easily posted my article using the fake online data, I decided to do proper research - as a matter of trust.
What I found was that there is NO real supporting scientific documented evidence from either of the 2 main sources quoted by most websites.
To say that I was disappointed is an understatement because I have meditated using raw organic cotton and personally found it to be more beneficial that regular mixed material clothing.
However, this is just my personal assessment.
You can read more about "Fabric Frequencies"
here.
There are a lot of people online promoting enhanced brainwaves using Binaural Beats.
Based on a severe lack of Scientific Studies (so far), this is all appears to not only be a scam - but also a potentially dangerous one.
Let me explain.
I have written about this "528 Hz Scam"
here.
Binaural beats brain stimulation is "purportedly" a popular strategy for supporting home-use cognitive enhancement - or is it?
However, this home-use supposed brain stimulation may actually be negative to your cognitive processes, and any intellectual improvement may simply be a placebo effect. 
Not only that but you have no idea what the wrong frequency or frequencies are doing and will do to your brain and mind.
This may be due to the fact that many people suffer psychosomatic victimization and when this is "potentially" balanced out by what they perceive as "something" which (supposedly) can help them, they react to this placebo effect by wishing (willing) themselves to be better.
Thus, without belief in it, it may bring no benefits.
Detrimental Mental ↟↟
Our body and apparently most of - if not all of - the Universe is made up of energy which is comprised of varying frequencies.
So if you are force feeding your brain a frequency which has zero beneficial proof, ask yourself this question.
Why would you risk a potential psychotic episode on an unproven frequency?
Back in the early 1980's there was a "Brain Wave" device which purportedly helped placate stress and also elevate the person during meditation.
I purchased one of these devices (at great expense) and proceeded to test it on myself.
Since I was already adapt at meditation I felt that this may help elevate me further - as they claimed.
However:
What I found was a complete disconnect from the tone produced as well as increasing discomfort when using the "device" and doing my meditation.
I wrote to the company and asked how they got the frequency which they used in the device.
They replied that it was taken from someone on a high level who was a meditator - they they did not provide that persons name.
Short story: The "device" ended up in the trash and the stress it caused ceased.
The Moral?
Do your research before you buy. ASK for case studies showing proof which has not been cherry picked.
In other words, the complete study for beginning to end.
Also ask for the participants "Blood Types".
The Test ↟↟
Firstly: please bear in mind that this test was done with a limited range of frequencies and not the fuller spectrum of frequencies we have available via online (or purchased) binaural beats devices..
Secondly: please also bear in mind that doing 1 off tests shows a lack of understanding of the human brain because most people have little to no mental discipline due to the fact that they do not practice (for example) controlled meditation or advanced meditation techniques.
Thirdly: No transparencies regarding who funded the study, their ages, medical condition parameters of the subjects, their diet and other important factors need to be accounted for.
You also need to consider nutritional deficiencies and prescription medications, especially psychotropic medications and how these factors may interact or interfere with each individual person and thus the final results.
Fourthly: This is not a magic pill system.
Reverse effect of binaural beats
↟↟
1,000 individuals were tested at their homes as they perform a two-part fluid intelligence test.
Some took the second part listening to binaural beats, while others took it in silence or listening to other sounds.
The binaural beats group was divided into three subgroups.
The first one was informed that they would listen to sounds that improve the brain's work, the second that neutral sounds, and the third that some sounds the nature of which was not defined.
We found that listening to binaural beats was not neutral, as it dramatically deteriorated the score irrespective of the condition.
Silence or other sounds had no effect.
Thus, home-use binaural beats brain stimulation brings reverse effects to those assumed or proclaimed - instead of supporting the effectiveness of cognitive activities, it may weaken them.
Non-invasive brain stimulation ("NIBS"
) techniques are currently very popular, both as tools for studying brain functions and strategies for supporting its functioning. 
They include big and expensive devices that are only used in scientific or therapeutic laboratories, for example the equipment for transcranial magnetic stimulation ("TMS"
), as well as small and relatively inexpensive ones that can be used at home.
An example of the latter are transcranial direct current stimulation ("tDCS"
) devices.
Business dedicated to all sorts of home-use neuro-modulators is thriving, a sign of which is the growing number of online brain shops that offer devices for home-use improvement of brain functioning.
This kind of personal monitoring is actually very important when you are doing serious meditation and want to get down to Theta and Delta levels for heightened experiences.
tDCS devices aimed at home use in order to-according to their producers-improve focus, attention, memory, and productivity can also be found in online markets at a very low price compared to industrial machines used for research or in hospitals etc.
The movement of "neuro-hackers"
(brain hacking) has also been developing recently, on the Internet, they show how to build tools for brain stimulation and how to use such forms of do-it-yourself (DIY) brain stimulation. I highly DO NOT recommend this.
Neuro-hacking is a subclass of bio-hacking and involves anything from nootropics to meditation to electronics. 
It should be urgently noted that many channels and social media platforms who write about cognitive hacking, often simply reprint unsubstantiated, biased or loosely researched data.
I have often found that reference websites they list are quite often no longer working and another point I have found, is that often people like doctors, professors etc are "quoted" as saying X, Y & b zut when you try and look up these people, many do not exist nor work at said institutions or universities.
WARNING
An incredibly widespread brain hacking tool is auditory brain stimulation, in particular binaural beats brain stimulation.
In this case, a simple computer and a basic program for sound processing are sufficient to build a modulator.
What is more, an audio file for brain stimulation can be placed on the Internet, e.g., on audio/video sharing platforms.
In order to stimulate, a headset connected to a smartphone or computer will suffice.
Before you start using any of these frequencies, check to see if the information provided is based on any specific research or study.
Most are not...
On one of the most popular online video-sharing websites alone, there is a huge number of binaural beats recordings labelled as "genius brain frequency" or "reach super focus".
On the web, there are numerous guidelines on how to use them at home in order to support the process of learning (e.g., when preparing for an exam), solve problems (e.g., when working from home) or carry out other cognitive tasks.
They suggest that these activities should be carried out every day while listening to accurately selected binaural beats, which is why the recordings available on the Internet are very long (from several dozen minutes to a dozen hours).
Such conditions are completely different from those known from scientific research into binaural beats when exposure to binaural beats is very short (from several seconds to several minutes) and accidental (most often linked to one visit to the laboratory).
There is thus a question of whether home-use binaural beats brain stimulation is safe, as well as whether it is effective at all.
The phenomenon of binaural beats occurs when tones with slightly different frequencies are presented separately to the right and left ear.
The phase-locking effect is mainly responsible for the mechanism of binaural beats.
This phenomenon involves the neuron generating action potentials at well-defined phases of a periodic acoustic signal.
Propagating in the nerve fibers of the auditory nerve, the action potentials encode Temporal Fine Structure (TFS) information of the acoustic signal.
Decoding the information contained in the TFS considerably supports the pitch perception process.
It can therefore be assumed that, due to the crossing of the neural pathways of the left and right ear, the action potentials in which the TFS information of the tones is contained interact and, consequently, the impression of binaural beats is created.
It is hypothesized that the neural interaction effects produced in this way can influence/modify brainwave parameters in such a way that a beat frequency (the mismatch between the tones) synchronizes cortical oscillations and, consequently, can act supportively with respect to a given activity.
In order to do so, a beat frequency is selected so that it is close to (or equal to) the target brain wave frequencies.
Thus, to support cognitive processes associated with beta waves, for example, binaural beats with a beat frequency in the range of 13 to 30 Hz are used (e.g., 240 Hz to the right ear and 255 Hz to the left ear in the case of 15 Hb zinaural beats brain stimulation).
It should also be noted that small children and teens have a greater audio range when listening to sounds, while older people generally have lower hearing abilities - due to "cilia"
damage - which means that they most probably will not hear such low frequencies such as the 7.83Hz Schumann Resonance.