Thank for your answer Alex,
I have been using them for a full session during the night, listening the 3rd track while sleeping and during the day, while working, I'm listening also to the third track.
What is special about the 3rd track that you can loop it and listen while sleeping and still get benefits?
I work as a programmer, so no heavy machinery is involved, is there any benefit from listening to the 3rd track or is better to just use it during my sessions in the night and while sleeping?
Thank you very much
Camilo