| Customer Reviews: Average Rating:  Rating : - Serious negative side effects I listened to this cd every other night for 2 weeks; the other nights I listened to Kelly Howell's Universal Mind Meditation II. Everything was fine for those 2 weeks. The Cd's were very relaxing and even helped put me to sleep. On the following Mionday morning, things went to hell. For over 2 weeks now, I have had an ever-present dull headache with frequent intermittent crushing pains, mostly in the back of my head. Plus I have often felt at times that I am out-of-body and have even had to leave work. I know this is from these cd's; there is nothing else it could be. I am very healthy, 33 years old, and no history of anything like this. Plus the morning I first awoke with the symptoms, I felt like I was still stuck in the meditative state, like I was stuck between being awake and dreaming. I contacted the brain sync company multiple times, and after about 10 days they finally got back to me and said it wasn't their cd's and that I should seek medical attention. Everything checked out fine with my physician, but my ongoing research on the negative effects associated with meditation has only solidifed my belief that these brain-wave entrainment cd's are highly dangerous. If you want to research for yourself, run a search on the following: meditation, hypersynchrony, intercranial pressure, harmful effects of meditation, etc. I look back and wonder why I was so dumb to trust anything that would alter my brainwaves. Let this be a warning to everyone. + See Full Customer Review |  |