Does anyone know about this? There does not yet seem to be much research in this area. I have heard some warnings about people with epilepsy or those under 18 not to be exposed to them.

I feel that anyone with epilepsy should check with their doctor first before using hemi-sync. As far as children goes, I know of many places that use hemi-sync music in the background for children which also helps to sooth them. A good book to read on all types of uses of hemi-sync is: Focusing the Whole Brain: Transforming Your Life with Hemispheric Synchronization by Ronald Russell.

im only 15, but i've been using Hemi-Sync and more recently BrainWave generator but the only bad things that seemed to happen were occasional headaches and losing conciousness, and i would say theyre safe but who knows, brainwave alteration doesn't sound like a particularly healthy thing to normal people.

This might sound a bit accusatory, if so I appologise.

DocM, no real reasons are presented as to why you think Hemi-Sync is not dangerous.. I suppose maybe your reason is that we are exposed to variations of it everyday (air conditioning, etc.) but it would be fallacious to assume that it is not dangerous because we are already exposed to it. If this is not what you meant, sorry.

your_mum, ehm.. losing consciousness sounds very dangerous to me!

Marilyn Maitreya, why do you feel it is healthy?

I do not mean to attack anyone, I was just hoping for some more definite answers. This is not meant to say that I did not appreciate the answers given.

-sven

Hi,
DocM wrote: >>>there is hemisync everywhere in nature and in our towns, and cities<<<
I don't think so. There is not this separation of the tones to each ear. When the theory is correct, this is essential. The 3rd tones (when overlaying the two) used with HemiSync are around 3-16 HZ. These frequencies cannot be perceived with the ears (maybe with the body).
There's a trick to "construct" those deep frequencies, that's drumming. Then the very deep frequencies are represented by beats. But here again, this includes not the separation of two slightly different tones. But, it seems to work too, in shamanic drumming with, as it seems, similar results like Hemi-Sync, so it is not quite sure how important the tone-separation is.
Another thing is the variating pink noise. I like it very much and guess this hiss alone has an effect on me (but maybe it has become a Pawlow-reflex).

Spooky

Sven and Jen,

Until a couple of weeks ago, I was regularly experimenting with the Gateway Hemi-Sync CDs.  My chief misgiving is how boring these CDs become, given their length.  So far I've concluded that they aren't worth the investment.   But on one occasion (and only one) I experienced the state known as Focus 10 (mind awake/ body asleep).  I was actually supposed to be experiencing Focus 12, but doubt that this distinction is meaningful.  Anyway,  the mind awake/body asleep state was fascinating and definitely worth exploring. 

I have experienced no unpleasant "trips," but anticipate 2 possible dangers.

(1) The CDs ask the listener to request the help of unidentified benign beings whose development is equal or superior to one's own.  In genuine possession cases, evil spirits sometimes mask their identity as benign figures.   

(2) Once you abuptly achieve an OBE, you are subject to possible attack from negative entities.  To read about this, consult the astralpulse.com website, especially the secition on "Psychic Self-Defense."   There you will learn about a whole book devoted to this subject by astral adept Robert Bruce.   

I have read extensively in this field and consider it helpful to use this analogy.  Is it safe to use Hemi-Sync to achieve OBEs?  Well, is it safe to swim at Florida's beaches?   I would say yes, but point out that occasionally there are shark attacks.  One OBE adept told me that she was often assaulted by low level entities while trying to return to her body.  All i can say is that none of this would stop me from either astral exploration or swimming at Florida beaches.  However, being blond and fair-skinned, I burn easily.   

Don

Sven,

I have surveyed the entire published peer-reviewed medical literature, and I can not find a single case report of a death or severe event, even a seizure related to binaural beats or hemi-sync.  You can do this yourself by typing search words into Pubmed.com.

Spooky, there is a report from 1975 in that same search showing that hemi-sync from higher frequencies are perceived, unlike what is stated by some commerical companies.  Also, I stand by my statements.  Slightly different tones are constantly being presented to each ear in the real world.  Once one is sensitized to hemi-sync, I believe it is possible to carry that effect into the day to day world.

Hemi-sync is a helpful tool.  But knowing we are mored than our bodies, using intent does not require hemi-sync.  Use it for what it is.  Do not depend on it.



Matthew