17_hz_infrasonidos_para_la_ansiedad_inquietud_t...

: Chills down the spine, "shivering on the wrist," and an "odd feeling in the stomach". The "Ghost Frequency" (18.9 Hz)

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". 17_hz_infrasonidos_para_la_ansiedad_inquietud_t...

: Scientists from the National Physical Laboratory used a 7-meter pipe to generate the tone, playing it during specific pieces without the audience's knowledge. : Chills down the spine, "shivering on the

: This frequency is near the resonant frequency of the human eye (approx. 18 Hz), which can cause vibrating vision that creates "gray apparitions" or peripheral hallucinations. : Chills down the spine