Examples of low frequency noise

Generally speaking, low-frequency waves are linked to “delta” and “ theta ” states which can boost relaxation and improve sleep . Higher frequencies reportedly boost your brain waves into a “ gamma ” state which may make you more alert, focused, or better able to recall memories.

Electromagnetic radiation, found in a wide range of wavelengths and frequencies in the electromagnetic spectrum, includes visible light, radio, television signals, microwaves and X-rays. … In general, the shorter the wavelength, the greater the danger to living things .

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 …