Electric and magnetic fields, commonly known as EMF, exist wherever electricity is produced or used, including around any electric appliance or wire that conducts electricity. Whenever you turn on a lamp, use a microwave, or use your computer, these frequencies are around.
The electric power we use in America is a 60 Hertz (Hz) alternating current, meaning the electric charges move back and forth 60 times per second, creating an “extremely low frequency” field. These are different from the much higher frequency fields associated with radio and TV waves and cell phone signals.