Brainwaves are always there. All frequencies of brainwaves are used. There's nothing harmful by altering them. If you do really 'trippy' doses, and you actually trip with them, and start thinking like you normally wouldn't, then sure, if you use this for too long, you may get some of those habits of...

aidanlogins wrote: You know a real hit of LSD is only $5? And there are actually no physical or mental side effects at all- despite the left-over propaganda rumours from the hippie-hunting days.

Yeah. The 70s is not proof that LSD is bad. Try telling that to Syd Barrett. Oh, wait! He's dead.