I am an admirer of news columnist Sean Gonsalves, but the recent column poo-pooing infrasound was wrong. I have been living with a pulsed low-frequency sound for six years or so. Others here have been plagued by this as well.
As is common with ultra-low frequency, some are more sensitive to it than others. Experiments with noise harassment by the Nazis and later by other scientists, such as Gavreau, etc., have proven that pulsed, intermittent, irregular infrasound can cause psychological and physiological disturbances.
There is a phenomenon called “the Hum,” which occurs all over the world, and is perhaps coincident with increased air-to-ground surveillance after 9/11 or with the proliferation of cell phone towers. Even something as simple (and less sinister) as compressor or motor noises in the low-frequency range can cause discomfort and sleep disturbances.
Gonsalves should have slept in a house disturbed by wind turbine infrasound for a few weeks before judging those who hear it as reacting to a psychogenic or placebo effect.
As the World Health Organization writes: “Low-frequency sound is more disturbing, even at very low sound pressure levels; these low-frequency components appear to have a significant detrimental effect on health.”