Considering that the mind moves in and out of various brain wave patterns throughout you day and night. Even the poorest non meditator is in alpha for about 5 seconds every minute. All hypnosis is, is a sustained deeper levels so that you can input the data 'you' want.

Considering that you have a 5 second window every minute where imput data is easiest... the TV, radio and internet becomes a very hypnotic devices. Flash and multi media to entertain you (or entrain you?). If you don't understand what hynosis is then I think it is important to do some research on it because all hypnosis is self hypnosis.

Alex