Seizures

[Warren91]

Is there anyway I could get an expert opinion on how the effect of different frequencys, played on a I-pod to change the Binaural Brainwaves in your head so you can reach a different state of mood, can harm your brain. Is there a possibly irreversible effects , can this cause you to loose the part of your brain that makes you know if your dreaming or not, can it cause Seizures can it cause depression, dependency on Binaural Brainwaves to feel normal or is there noway sounds can hurt you mentally.

If I can get this answered ill for sure have more questions.