Has anyone had success with using caffeine to aid Photoreading? I tend to get drowsy and start drifting off when I'm in the Alpha or Theta states while photoreading and the information in the book doesn't reach me. I decided to drink a little coffee (much less than 1 cup) and photoread with a Theta bwgen wave playing with moderate success. Any ideas how to maintain the accelerative learning state w/o using coffee for alertness?