>>41464436
>Because this beat frequency has to be processed in your mind instead of from the audio source, it induces this brainwave state over time as the mind naturally attunes to the dominant stimulus that it collects.
Before I forget, the way to ensure that Hemi-Sync is guaranteed to not work is to believe that it does not work. Humans have very few mental safeguards but refusing to believe in something is a pretty effective one.