Have you guys ever heard of this? I stumbled on a documentary (https://invidio.us/watch?v=9mK93gHFWXs) on what it called the Schumann resonance (of which a great exposition is given in the docu). The narrator presents a many intriguing experiments which prove the existence of this natural frequency and it almost seems too mind boggling to even imagine. Naturally, if as he shows in the documentary, could one just constantly have 7.83 Hz playing at all times in their home and take advantage of this healthy frequency?

Any further thoughts appreciated.