17_hz_infrasonidos_para_la_ansiedad_inquietud_t... Here

In May 2003, researchers in London conducted a mass experiment by hiding a within contemporary music during two concerts.

: Tandy’s research showed that standing waves at this frequency can cause a sensation of chest pressure and a "feeling of a presence" in the room. Mechanism of Anxiety Induction 17_hz_infrasonidos_para_la_ansiedad_inquietud_t...

The study of infrasound and anxiety often references the work of , who identified 18.9 Hz (very close to 17 Hz) as a frequency capable of causing "hauntings". In May 2003, researchers in London conducted a

: Out of 750 participants, 22% reported a surge in "odd sensations" specifically when the 17 Hz infrasound was present. Reported Symptoms : In May 2003