When we first came out with the 10-Minute Supercharger I had to have a Coke or Pepsi every afternoon. Otherwise, I would drag to the end of the day. And back then I sauntered in between 8 and 9 in the morning--I wasn't working nearly as hard then as today (but I really love it).
I began listening to the 10-Minute Supercharger every afternoon instead of the Pepsi and I immediately found myself with the energy I needed without dragging.
After about a month and a half I quit taking the 10 minutes. That was over 10 years ago. I've had two or three Pepsi's since then. The tape helped me change the way I use my energy. All without caffeine jitters.
I seldom use it during the day any more. Sometimes when I get home, I might put it on, but I don't need it.
I noticed that some times I wouldn't feel any more energized immediately after the tape, but within 20 minutes I was at full energy. Every time I reviewed my day before bed I noticed more energy coming after the tape than before.