Why are low frequencies harmful?

Some recent epidemiologic studies have suggested that the exposure to extremely low frequency (ELF) electromagnetic fields (EMF) affect human health, because of the incidence of certain types of cancer, depression, and miscarriage have been increased among individuals living or working in environments exposed to such …

Observed symptoms of low frequency noise sensitivity are: feelings of irritation, headache, nausea . disorienta- tion, digestive disorders, disturbed or no sleep.

Especially dangerous is infrasound at the frequency of 7 Hz , since this sound, generating frequencies, close to characteristic frequencies of the organs of our body, may disturb the heart or brain activity.

Discomfort from, Sensitivity to, and Irritability from Noise . Discomfort, sensitivity to noise, and irritability are other effects on human health due to exposure to low-frequency noise.