Hi...I was skeptical of Kasina and these pseudo-science technologies. I bought the device out of pure desperation in hope that it may be able to ease my daily headaches or provide a getaway. I have had a steady headache every moment of my life, it only waxes and wains in severity but never comes to a complete stop. I hoped that this would be a shortcut to help with/use in conjunction with biofeedback and meditation. I would say that I was 90% certain that I would be returning the device within the first two weeks but figured that trying it couldn't hurt anything.
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