Having trouble sleeping? You may be just one in a long line of sufferers of PDSD- Post-Dramatic Stress Disorder. Simply put, what you have watched or read in the last hour before putting your head down to sleep may have stressed you out of that I'm tired and want to go to sleep state. i'm still reading up on it but it seems that when you are in an Alpha state - as you are when you watch television (or drive) - you are 200 times more suggestible than when you are not in an Alpha state! Seems if advertisers could learn how to tap into this, they would have a way of prying open people's wallets and making more sales!