Not on this series of tapes. We do have tapes with subliminal messages and they are clearly marked. No only when you want to receive the extra benefits of the brain wave frequencies. When using headphones, one half hour to an hour is recommended. Personal experience is different for everybody.
Many people experience results after the first listening.
Since the tapes do have a cumulative effect, we recommend you listen daily for the first 6 weeks, then as needed to achieve the results you desire. Experiment with the tapes to find what works best for you. Yes, but do not use headphones while driving. The messages are subliminal. All you hear is the music.