A few weeks ago a set of windmill electric generators were designated harmful up to 6 miles away because of the low frequency air pressure vibrations.
Get a copy of Prescription for Nutritional Healing by Phyllis Balch 5th edition.
Pages 538 to542 on Insomnia.
also from here (no pun intended) http://oto2.wustl.edu/cochlea/wind.html
Stimulating “subconscious” pathways.
We know that activity in many nerves of the ear does not result in “hearing”. If the nerves from the utricle or semi-circular canals are stimulated, you may get eye movements and changes in tension of neck muscles, but you don't hear it.
The pathway of conscious hearing is very well established. It goes from the inner hair cells of the cochlea, through type I auditory nerve fibers, to the fusiform cells of the cochlear nucleus in the brain, and so on.
This pathway has been well-studied. The outer hair cells of the ear (the ones that are sensitive to infrasound) do not connect to this conscious pathway. They connect to the type II nerves (which make up 5% of the nerve fibers), then to granule cells in the brain, then to cartwheel cells and to a host of other pathways in the brain. The cartwheel cells are known to be inhibitory to hearing which may explain why the stimulation is not heard. It is known that granule cells are connected into circuits related to attention and alerting. It is not unreasonable to think that stimulation of this pathway could wake you up, and you wouldn't even hear what had actually woken you.
Symptoms: Sleep disturbance, panic, with chronic sleep deprivation leading to blood pressure elevation, memory dysfunction and more.
That’s very interesting...Saving to read tomorrow.
Thanks Spokeshave!