The foundational low-frequency layer engineered to sit within the theta brainwave range.
The theta frequency base is the foundational tone of the session, engineered to sit within the 4–7Hz range where theta brainwave activity is typically observed.
It's the anchor of the entire session — every other layer is built around and synchronized to this base frequency.
Theta activity is well documented in EEG research as a brainwave state associated with deep relaxation, meditation and the drowsy transition into sleep.
This describes general research on this sound-design technique, not a clinical trial of the finished Theta Clear program itself. See the full sound layer breakdown or the program overview for more.