I downloaded the BrainWave Generator and was surprised to hear the theta wave noises... to tell the truth it reminded me of an Alien's space ship. It did make me drowsy, and thats when i got to wondering - with repeated use do you think there are any negative effects to it? I was reading that i high percentage of terminally ill people show an increase in Delta Waves, and it sorta made me not want to listen anymore, lol... I also made a file that brings the frequencies from 7hz up to 20hz over a 20 minute time period. (To help me awaken after listening to my sleeping one which brings you from 20hz to 7hz over a 20 minute period). Am I just being paranoid as usual?